Petersen, E. L., & Skrumsager, B. (1991). Meteorology and wind energy department annual progress report 1 January - 31 December 1990. RISO National Laboratory.
Citace podle Chicago (17th ed.)Petersen, E. L., a B. Skrumsager. Meteorology and Wind Energy Department Annual Progress Report 1 January - 31 December 1990. Roskilde: RISO National Laboratory, 1991.
Citace podle MLA (9th ed.)Petersen, E. L., a B. Skrumsager. Meteorology and Wind Energy Department Annual Progress Report 1 January - 31 December 1990. RISO National Laboratory, 1991.
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