Local knowledge spillovers and the effects of related and unrelated variety on the novelty of innovation

Knowledge spillovers have been identified as a factor affecting the unequal distribution of innovation in space. In this paper we aim to understand how territorial factors shape the novelty degree of innovations. Thus, we perform an empirical analysis that relates territorial factors to innovative p...

Full description

Saved in:
Bibliographic Details
Published in:Regional studies Vol. 57; no. 9; pp. 1666 - 1680
Main Authors: Mascarini, Suelene, Garcia, Renato, Quatraro, Francesco
Format: Journal Article
Language:English
Published: Cambridge Routledge 02.09.2023
Taylor & Francis Ltd
Subjects:
degree of novelty of innovation
Empirical analysis
Expenditures
geography of innovation
Information dissemination
Innovations
Local knowledge
local knowledge spillovers
Novelty
Organizational effectiveness
R&D
Regions
related and unrelated variety
Research & development
ISSN:0034-3404, 1360-0591
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract Knowledge spillovers have been identified as a factor affecting the unequal distribution of innovation in space. In this paper we aim to understand how territorial factors shape the novelty degree of innovations. Thus, we perform an empirical analysis that relates territorial factors to innovative performance at the firm level. Our results show that local knowledge spillovers from research and development expenditures are positively associated with upper-level innovation, while local knowledge spillovers from total innovation expenditures are not related to the degree of novelty of innovation. Furthermore, the impacts on innovation are also moderated by related and unrelated varieties since firms in regions with higher regional-related variety are less likely to generate upper-level innovation.
AbstractList Knowledge spillovers have been identified as a factor affecting the unequal distribution of innovation in space. In this paper we aim to understand how territorial factors shape the novelty degree of innovations. Thus, we perform an empirical analysis that relates territorial factors to innovative performance at the firm level. Our results show that local knowledge spillovers from research and development expenditures are positively associated with upper-level innovation, while local knowledge spillovers from total innovation expenditures are not related to the degree of novelty of innovation. Furthermore, the impacts on innovation are also moderated by related and unrelated varieties since firms in regions with higher regional-related variety are less likely to generate upper-level innovation.
Author Garcia, Renato
Mascarini, Suelene
Quatraro, Francesco
Author_xml – sequence: 1
  givenname: Suelene
  orcidid: 0000-0002-9926-7877
  surname: Mascarini
  fullname: Mascarini, Suelene
  email: smascarini@gmail.com
  organization: University of Turin
– sequence: 2
  givenname: Renato
  orcidid: 0000-0001-9739-1658
  surname: Garcia
  fullname: Garcia, Renato
  organization: University of Campinas
– sequence: 3
  givenname: Francesco
  orcidid: 0000-0001-5746-2239
  surname: Quatraro
  fullname: Quatraro, Francesco
  organization: University of Turin
BookMark eNqFkE1PAyEURYnRxPrxE0xIXE-FGZjpxI3G-JU0ceOevGEeFkWoQDX99860deNCV-SGcx6Pe0T2ffBIyBlnU85m7IKxSlSCiWnJynJactG0vNkjE17VrGCy5ftkMjLFCB2So5ReGWNCNtWELOZBg6NvPnw57F-QpqV1LnxiTBR8T_MCKRqDOicaDI3oIGO_uVr5n_QJ0WJe0-A3vB90N0ZDrR8CZBv8CTkw4BKe7s5j8nx3-3zzUMyf7h9vrueFFo3MBYha8o5VLa9bHD4iDOe8AykQQLJOCNTQSWjbspM1F12N2JjeCMM0gpbVMTnfjl3G8LHClNVrWEU_vKjKmWibcsZn7UBdbikdQ0oRjdI2b9bMEaxTnKmxWfXTrBqbVbtmB1v-spfRvkNc_-tdbT3rTYjv8BWi61WGtQvRRPDaJlX9PeIbYbuTBw
CitedBy_id crossref_primary_10_1111_rsp3_12729
crossref_primary_10_3390_buildings15142528
crossref_primary_10_1080_15387216_2023_2197926
crossref_primary_10_1007_s00168_025_01414_1
crossref_primary_10_1016_j_technovation_2023_102860
crossref_primary_10_1080_00343404_2024_2429571
crossref_primary_10_1177_21582440251316935
crossref_primary_10_1007_s11442_025_2328_1
crossref_primary_10_1111_rsp3_12679
crossref_primary_10_1016_j_techfore_2025_124337
crossref_primary_10_1080_00343404_2023_2271516
crossref_primary_10_1590_1982_3533_2024v33n2_268487
crossref_primary_10_1108_INMR_12_2023_0245
crossref_primary_10_1016_j_technovation_2024_103115
crossref_primary_10_58884_akademik_hassasiyetler_1572389
crossref_primary_10_1007_s11187_024_00904_4
Cites_doi 10.2307/3003321
10.1016/j.respol.2020.104073
10.1080/00343404.2015.1114175
10.1016/j.jue.2006.08.003
10.1093/jeg/lbm030
10.1080/00343404.2017.1337884
10.1080/00343404.2014.940305
10.1007/s11187-018-0034-4
10.1080/09654313.2016.1151481
10.1016/j.respol.2008.03.011
10.1016/j.respol.2012.05.009
10.1080/13662716.2014.919762
10.1016/j.respol.2015.06.013
10.1080/00343404.2017.1331294
10.1016/j.respol.2010.05.013
10.1016/j.respol.2008.01.001
10.1093/jnlecg/lbh027
10.1111/grow.12102
10.1080/0022250X.2015.1112384
10.1016/j.technovation.2008.02.001
10.1016/j.strueco.2019.06.004
10.1111/pirs.12527
10.1080/21681376.2015.1099464
10.1093/icc/dtt029
10.1007/s11187-016-9722-0
10.1016/j.respol.2016.01.013
10.4324/9780203022702
10.2307/2393553
10.1016/j.respol.2016.10.009
10.1016/j.euroecorev.2020.103391
10.1080/2157930X.2022.2092682
10.1017/CBO9780511493386.006
10.1080/23792949.2018.1484669
10.1080/1540496X.2015.1026693
10.1080/00130095.2016.1154442
10.1007/s11187-014-9547-7
10.1093/icc/10.4.975
10.1016/S0048-7333(00)00143-8
10.1007/s12061-018-9259-5
10.1016/j.respol.2017.05.011
10.1016/S0048-7333(01)00184-6
10.1016/j.worlddev.2013.11.013
10.1016/j.respol.2010.09.005
10.1016/j.techfore.2013.03.008
10.1093/cje/23.2.167
10.1080/09654313.2016.1246517
10.1111/1468-2427.12554
10.1080/00343400601120296
10.1093/jeg/lbs020
10.1111/1467-9442.00007
10.1080/00343404.2016.1262016
ContentType Journal Article
Copyright 2023 Regional Studies Association 2023
2023 Regional Studies Association
Copyright_xml – notice: 2023 Regional Studies Association 2023
– notice: 2023 Regional Studies Association
DBID AAYXX
CITATION
7TQ
8BJ
DHY
DON
FQK
JBE
DOI 10.1080/00343404.2022.2147917
DatabaseName CrossRef
PAIS Index
International Bibliography of the Social Sciences (IBSS)
PAIS International
PAIS International (Ovid)
International Bibliography of the Social Sciences
International Bibliography of the Social Sciences
DatabaseTitle CrossRef
International Bibliography of the Social Sciences (IBSS)
PAIS International
DatabaseTitleList
International Bibliography of the Social Sciences (IBSS)
DeliveryMethod fulltext_linktorsrc
Discipline Sociology & Social History
EISSN 1360-0591
EndPage 1680
ExternalDocumentID 10_1080_00343404_2022_2147917
2147917
Genre Research Article
GroupedDBID -~X
.7I
.QK
0BK
0R~
123
29P
2DF
3R3
4.4
5VS
7WY
8FL
8V8
AAGDL
AAGZJ
AAHIA
AAIKC
AAMFJ
AAMIU
AAMNW
AAPUL
AATTQ
AAZMC
ABCCY
ABFIM
ABISK
ABJNI
ABLIJ
ABLJU
ABPEM
ABPPZ
ABRLO
ABTAI
ABUFD
ABXUL
ABXYU
ABZLS
ACGFO
ACGFS
ACHQT
ACIWK
ACNCT
ACTIO
ACTOA
ADAHI
ADCVX
ADKVQ
ADLRE
ADMHG
ADXPE
AECIN
AEFOU
AEGXH
AEISY
AEKEX
AEMOZ
AEOZL
AEPSL
AEYOC
AEZRU
AFRAH
AFRVT
AGDLA
AGHSJ
AGMYJ
AGRBW
AHDZW
AHQJS
AIAGR
AIJEM
AIYEW
AJWEG
AKBVH
AKVCP
ALMA_UNASSIGNED_HOLDINGS
ALQZU
AQTUD
AVBZW
AWYRJ
BEJHT
BLEHA
BMOTO
BOHLJ
CCCUG
CQ1
CS3
DGFLZ
DU5
EBO
EBR
EBS
EBU
EIS
EMK
EOH
EPL
ESO
E~B
E~C
F5P
FD6
FIL
G-F
GTTXZ
H13
HF~
HZ~
J.O
K1G
K60
K6~
KYCEM
LJTGL
M4Z
NA5
NY-
O9-
OFU
P2P
RIG
RNANH
ROSJB
RSYQP
S-F
STATR
TASJS
TBQAZ
TDBHL
TEG
TFH
TFL
TFW
TGC
TH9
TN5
TNTFI
TRJHH
TUROJ
TWI
U5U
UHB
UT5
UT9
VAE
WH7
YNT
~01
~S~
AAYXX
CITATION
7TQ
8BJ
DHY
DON
FQK
JBE
ID FETCH-LOGICAL-c475t-a4651b039169e4794f111ba54eaa50b44ecab5a992b5614b6ee7fdf4f0ceac53
IEDL.DBID TFW
ISICitedReferencesCount 15
ISICitedReferencesURI http://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=Summon&SrcAuth=ProQuest&DestLinkType=CitingArticles&DestApp=WOS_CPL&KeyUT=000915304600001&url=https%3A%2F%2Fcvtisr.summon.serialssolutions.com%2F%23%21%2Fsearch%3Fho%3Df%26include.ft.matches%3Dt%26l%3Dnull%26q%3D
ISSN 0034-3404
IngestDate Sat Nov 08 02:24:15 EST 2025
Sat Nov 29 02:57:00 EST 2025
Tue Nov 18 21:44:19 EST 2025
Mon Oct 20 23:45:50 EDT 2025
IsDoiOpenAccess false
IsOpenAccess true
IsPeerReviewed true
IsScholarly true
Issue 9
Language English
LinkModel DirectLink
MergedId FETCHMERGED-LOGICAL-c475t-a4651b039169e4794f111ba54eaa50b44ecab5a992b5614b6ee7fdf4f0ceac53
Notes ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ORCID 0000-0001-9739-1658
0000-0001-5746-2239
0000-0002-9926-7877
OpenAccessLink https://figshare.com/articles/journal_contribution/Local_knowledge_spillovers_and_the_effects_of_related_and_unrelated_variety_on_the_novelty_of_innovation/21896083
PQID 2849728189
PQPubID 49042
PageCount 15
ParticipantIDs crossref_citationtrail_10_1080_00343404_2022_2147917
crossref_primary_10_1080_00343404_2022_2147917
informaworld_taylorfrancis_310_1080_00343404_2022_2147917
proquest_journals_2849728189
PublicationCentury 2000
PublicationDate 2023-09-02
PublicationDateYYYYMMDD 2023-09-02
PublicationDate_xml – month: 09
  year: 2023
  text: 2023-09-02
  day: 02
PublicationDecade 2020
PublicationPlace Cambridge
PublicationPlace_xml – name: Cambridge
PublicationTitle Regional studies
PublicationYear 2023
Publisher Routledge
Taylor & Francis Ltd
Publisher_xml – name: Routledge
– name: Taylor & Francis Ltd
References CIT0030
CIT0032
CIT0031
CIT0034
CIT0033
Suzigan W. (CIT0049) 2020
CIT0035
CIT0037
Jaffe A. B. (CIT0036) 1989; 79
CIT0039
CIT0041
CIT0040
Crescenzi R. (CIT0022) 2016; 93
CIT0043
CIT0042
CIT0001
CIT0045
CIT0044
CIT0003
CIT0047
CIT0002
CIT0046
CIT0005
CIT0004
CIT0048
CIT0007
CIT0006
CIT0009
CIT0008
CIT0050
CIT0052
CIT0051
CIT0053
Berrutti F. (CIT0012) 2019
CIT0011
Audretsch D. B. (CIT0010) 1996; 86
CIT0014
CIT0013
CIT0016
CIT0015
CIT0018
CIT0017
CIT0019
CIT0021
CIT0020
CIT0023
Mascarini S. (CIT0038) 2019; 13
CIT0506
CIT0505
CIT0508
CIT0507
CIT0025
CIT0024
CIT0027
CIT0026
CIT0502
CIT0029
CIT0501
CIT0028
CIT0504
References_xml – volume: 79
  start-page: 957
  issue: 5
  year: 1989
  ident: CIT0036
  publication-title: The American Economic Review
– ident: CIT0032
  doi: 10.2307/3003321
– ident: CIT0508
  doi: 10.1016/j.respol.2020.104073
– ident: CIT0502
  doi: 10.1080/00343404.2015.1114175
– ident: CIT0016
  doi: 10.1016/j.jue.2006.08.003
– ident: CIT0506
  doi: 10.1093/jeg/lbm030
– ident: CIT0045
  doi: 10.1080/00343404.2017.1337884
– ident: CIT0017
  doi: 10.1080/00343404.2014.940305
– ident: CIT0007
  doi: 10.1007/s11187-018-0034-4
– volume: 13
  start-page: 183
  issue: 2
  year: 2019
  ident: CIT0038
  publication-title: Revista Brasileira de Estudos Regionais e Urbanos (RBERU)
– ident: CIT0041
  doi: 10.1080/09654313.2016.1151481
– start-page: 1
  year: 2019
  ident: CIT0012
  publication-title: Economics of Innovation and New Technology
– ident: CIT0018
  doi: 10.1016/j.respol.2008.03.011
– start-page: 1
  year: 2020
  ident: CIT0049
  publication-title: Economics of Innovation and New Technology
– ident: CIT0025
  doi: 10.1016/j.respol.2012.05.009
– volume: 86
  start-page: 630
  issue: 3
  year: 1996
  ident: CIT0010
  publication-title: The American Economic
– ident: CIT0037
  doi: 10.1080/13662716.2014.919762
– volume: 93
  start-page: 1
  issue: 1
  year: 2016
  ident: CIT0022
  publication-title: Economic Geography
– ident: CIT0013
  doi: 10.1016/j.respol.2015.06.013
– ident: CIT0005
  doi: 10.1080/00343404.2017.1331294
– ident: CIT0047
  doi: 10.1016/j.respol.2010.05.013
– ident: CIT0052
  doi: 10.1016/j.respol.2008.01.001
– ident: CIT0048
  doi: 10.1093/jnlecg/lbh027
– ident: CIT0046
  doi: 10.1111/grow.12102
– ident: CIT0053
  doi: 10.1080/0022250X.2015.1112384
– ident: CIT0003
  doi: 10.1016/j.technovation.2008.02.001
– ident: CIT0501
  doi: 10.1016/j.strueco.2019.06.004
– ident: CIT0035
  doi: 10.1111/pirs.12527
– ident: CIT0028
  doi: 10.1080/21681376.2015.1099464
– ident: CIT0011
  doi: 10.1093/icc/dtt029
– ident: CIT0504
  doi: 10.1007/s11187-016-9722-0
– ident: CIT0042
– ident: CIT0001
  doi: 10.1016/j.respol.2016.01.013
– ident: CIT0004
  doi: 10.4324/9780203022702
– ident: CIT0019
  doi: 10.2307/2393553
– ident: CIT0050
  doi: 10.1016/j.respol.2016.10.009
– ident: CIT0009
  doi: 10.1016/j.euroecorev.2020.103391
– ident: CIT0039
  doi: 10.1080/2157930X.2022.2092682
– ident: CIT0020
  doi: 10.2307/2393553
– ident: CIT0029
  doi: 10.1017/CBO9780511493386.006
– ident: CIT0027
  doi: 10.1080/23792949.2018.1484669
– ident: CIT0024
  doi: 10.1080/1540496X.2015.1026693
– ident: CIT0033
  doi: 10.1080/00130095.2016.1154442
– ident: CIT0051
  doi: 10.1007/s11187-014-9547-7
– ident: CIT0015
  doi: 10.1093/icc/10.4.975
– ident: CIT0008
  doi: 10.1016/S0048-7333(00)00143-8
– ident: CIT0030
  doi: 10.1007/s12061-018-9259-5
– ident: CIT0043
  doi: 10.1016/j.respol.2017.05.011
– ident: CIT0002
  doi: 10.1016/S0048-7333(01)00184-6
– ident: CIT0014
– ident: CIT0034
  doi: 10.1016/j.worlddev.2013.11.013
– ident: CIT0044
  doi: 10.1016/j.respol.2010.09.005
– ident: CIT0006
  doi: 10.1016/j.techfore.2013.03.008
– ident: CIT0040
  doi: 10.1093/cje/23.2.167
– ident: CIT0021
  doi: 10.1080/09654313.2016.1246517
– ident: CIT0023
  doi: 10.1111/1468-2427.12554
– ident: CIT0026
  doi: 10.1080/00343400601120296
– ident: CIT0507
  doi: 10.1093/jeg/lbs020
– ident: CIT0031
  doi: 10.1111/1467-9442.00007
– ident: CIT0505
  doi: 10.1080/00343404.2016.1262016
SSID ssj0004573
Score 2.4665966
Snippet Knowledge spillovers have been identified as a factor affecting the unequal distribution of innovation in space. In this paper we aim to understand how...
SourceID proquest
crossref
informaworld
SourceType Aggregation Database
Enrichment Source
Index Database
Publisher
StartPage 1666
SubjectTerms degree of novelty of innovation
Empirical analysis
Expenditures
geography of innovation
Information dissemination
Innovations
Local knowledge
local knowledge spillovers
Novelty
Organizational effectiveness
R&D
Regions
related and unrelated variety
Research & development
Title Local knowledge spillovers and the effects of related and unrelated variety on the novelty of innovation
URI https://www.tandfonline.com/doi/abs/10.1080/00343404.2022.2147917
https://www.proquest.com/docview/2849728189
Volume 57
WOSCitedRecordID wos000915304600001&url=https%3A%2F%2Fcvtisr.summon.serialssolutions.com%2F%23%21%2Fsearch%3Fho%3Df%26include.ft.matches%3Dt%26l%3Dnull%26q%3D
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
journalDatabaseRights – providerCode: PRVAWR
  databaseName: Taylor and Francis Online Journals
  customDbUrl:
  eissn: 1360-0591
  dateEnd: 99991231
  omitProxy: false
  ssIdentifier: ssj0004573
  issn: 0034-3404
  databaseCode: TFW
  dateStart: 19670501
  isFulltext: true
  titleUrlDefault: https://www.tandfonline.com
  providerName: Taylor & Francis
link http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwrV1LSwMxEA5SPHjxLVqr5CDetmx3Z5vmKGLxIMVDwd6WJJtgoWxLd1vovzeTza4tIj3oMSQTQjKZyWPm-wh5yLgCW8WDgXUPAegsCUQiIOD45dSTfcm4cGQTbDQaTCb83UcTFj6sEu_QpgKKcLYaN7eQRR0Rh_xjEEOILyJR1EWiHXvnsFbYun7cmuPhxxZeuP9jjiFAkTqH57dedrzTDnbpD1vtHNDw5B-GfkqO_emTPlXqckYOdH5O2k3SCn2kVbourdBDNhfk8w2dHW2e3mixmM5c3GdB7SioPT9SHxNC54a61BiduapVXpfWeCEvN3Seu_a5FZ9h0dBpQ8p6ScbDl_Hza-DZGQIFLCkDgSzqEgHm-1wjTr2xZlOKBLQQSSgBtBIyEZxHEtFGZV9rZjIDJlTW2CfxFWnl81xfExpLrQcQGwCmwKhISqb7hoWhgoxnIrohUC9KqjxyORJozNLeN8Cpm9YUpzX103pDuo3YooLu2CfAt1c8Ld2biakITtJ4j2ynVo_UW4Eita6fM4Tb4u0_dH1LjpDj3gW2RR3SKpcrfUcO1bqcFst7p-9fFwb8Lg
linkProvider Taylor & Francis
linkToHtml http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwrV3da8IwEA-bG2wv-x7TfeVh7K1S26s1j2NMHHM-CfMtJGnCBKmiVfC_Xy5tnTKGD9tjSC-E5HqXXO5-P0IeEqbAdjGvZd2DBzqJPBEJ8Bg-OTVkU8ZMOLKJuNdrDQZsvRYG0yrxDm1yoAhnq_HnxmB0mRKHBGQQgo8hkSCoI9OOvXTskr3I-lrEz--3P9YQw4tX5hA8lCmreH4bZsM_baCX_rDWzgW1j_9j8ifkqDiA0qdcY07Jjk7PSG1Vt0IfaV6xS3MAkeU5-eyiv6Or6BudTYYjl_o5o3Ya1B4haZEWQseGuuoYnbiueVq2Fngnz5Z0nLrvUys-wqahwxUv6wXpt1_6zx2vIGjwFMRR5gkkUpeIMd9kGqHqjbWcUkSghYh8CaCVkJFgLJAIOCqbWscmMWB8Ze19FF6SSjpO9RWhodS6BaEBiBUYFUgZ66aJfV9BwhIRVAmUu8JVAV6OHBoj3vjGOHXLynFZebGsVVJfiU1y9I5tAmx9y3nmwiYm5zjh4RbZm1I_eGEIZtx6fxYj4har_WHoe3LQ6b93efe193ZNDpHy3uW5BTekkk3n-pbsq0U2nE3vnPJ_ARIbAGc
linkToPdf http://cvtisr.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwrV3dS8MwEA86RXzxW5yfeRDfOrr22i6Pog5FGT4M3FtI0gQHoxu2Cv735tJ0KiJ70MeQXgjJ9e6S3P1-hJznTIHtYkHPuocAdJ4EIhEQMHxy6spUZkw4solsMOiNRuzRZxOWPq0Sz9CmBopwthp_7llumow45B-DGEK8EYmiDhLt2DPHMlmxoXOKSj7sP30BDPePzDEEKNMU8fw2zDf39A289Iexdh6ov_kPc98iGz78pJe1vmyTJV3skMN51Qq9oHW9Lq3hQ953yfMDejs6v3uj5Ww8cYmfJbWzoDaApD4phE4NdbUxOnddr0XTesMTefVOp4X7vrDiE2waOp6zsu6RYf9meHUbeHqGQEGWVIFAGnWJCPMp0whUb6zdlCIBLUQSSgCthEwEY5FEuFGZap2Z3IAJlbX2SbxPWsW00AeExlLrHsQGIFNgVCRlplOThaGCnOUiahNoNoUrD12ODBoT3v1EOHXLynFZuV_WNunMxWY1dsciAfZ1x3nlLk1MzXDC4wWyx416cG8GSm59P8sQb4sd_mHoM7L2eN3nD3eD-yOyjnz3LsktOiat6uVVn5BV9VaNy5dTp_ofCCv_Cg
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Local+knowledge+spillovers+and+the+effects+of+related+and+unrelated+variety+on+the+novelty+of+innovation&rft.jtitle=Regional+studies&rft.au=Mascarini%2C+Suelene&rft.au=Garcia%2C+Renato&rft.au=Quatraro%2C+Francesco&rft.date=2023-09-02&rft.issn=0034-3404&rft.eissn=1360-0591&rft.volume=57&rft.issue=9&rft.spage=1666&rft.epage=1680&rft_id=info:doi/10.1080%2F00343404.2022.2147917&rft.externalDBID=n%2Fa&rft.externalDocID=10_1080_00343404_2022_2147917
thumbnail_l http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/lc.gif&issn=0034-3404&client=summon
thumbnail_m http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/mc.gif&issn=0034-3404&client=summon
thumbnail_s http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/sc.gif&issn=0034-3404&client=summon