Bäckman, H. (1985). Infiltration/Inflow in separate sewer systems. Some aspects on sources and a methodology for localization and quantification of infiltration into sanitary sewers caused by leaking storm sewers. Chalmers Tekniska Högskola.
Citace podle Chicago (17th ed.)Bäckman, Hans. Infiltration/Inflow in Separate Sewer Systems. Some Aspects on Sources and a Methodology for Localization and Quantification of Infiltration into Sanitary Sewers Caused by Leaking Storm Sewers. Göteborg: Chalmers Tekniska Högskola, 1985.
Citace podle MLA (9th ed.)Bäckman, Hans. Infiltration/Inflow in Separate Sewer Systems. Some Aspects on Sources and a Methodology for Localization and Quantification of Infiltration into Sanitary Sewers Caused by Leaking Storm Sewers. Chalmers Tekniska Högskola, 1985.