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| Řádek 49: | Řádek 49: | ||
http://www.palaeos.org/Trophic_structure | http://www.palaeos.org/Trophic_structure | ||
http://www.deer.rr.ualberta.ca/library/guild/trophic_structure.htm | http://www.deer.rr.ualberta.ca/library/guild/trophic_structure.htm | ||
http://en.wikipedia.org/wiki/Raymond_Lindeman | |||
=== Literatura === | === Literatura === | ||