Lafferty, Kevin D; Kuris, Armand M (2002-11-01). "Trophic strategies, animal diversity and body size". Trends in Ecology & Evolution (به انگلیسی). 17 (11): 507–513. doi:10.1016/S0169-5347(02)02615-0. ISSN0169-5347.
Gill, Howard S.; Renaud, Claude B.; Chapleau, François; Mayden, Richard L.; Potter, Ian C.; Douglas, M. E. (2003). "Phylogeny of Living Parasitic Lampreys (Petromyzontiformes) Based on Morphological Data". Copeia. 2003 (4): 687–703. doi:10.1643/IA02-085.1. S2CID85969032.
Gill, Howard S.; Renaud, Claude B.; Chapleau, François; Mayden, Richard L.; Potter, Ian C.; Douglas, M. E. (2003). "Phylogeny of Living Parasitic Lampreys (Petromyzontiformes) Based on Morphological Data". Copeia. 2003 (4): 687–703. doi:10.1643/IA02-085.1. S2CID85969032.
Lafferty, Kevin D; Kuris, Armand M (2002-11-01). "Trophic strategies, animal diversity and body size". Trends in Ecology & Evolution (به انگلیسی). 17 (11): 507–513. doi:10.1016/S0169-5347(02)02615-0. ISSN0169-5347.