Burger, J. (1984). "Grebes nesting in gull colonies: protective associations and early warning". American Naturalist. 123 (3): 327–337. doi:10.1086/284207. JSTOR2461099. S2CID85305462.
Wisniveski-Colli, C.; et al. (1992). "Sylvatic American trypanosomiasis in Argentina. Trypanosoma cruzi infection in mammals from the Chaco forest in Santiago del Estero". Transactions of the Royal Society of Tropical Medicine and Hygiene. 86 (1): 38–41. doi:10.1016/0035-9203(92)90433-D. PMID1566301.
Burger, J. (1984). "Grebes nesting in gull colonies: protective associations and early warning". American Naturalist. 123 (3): 327–337. doi:10.1086/284207. JSTOR2461099. S2CID85305462.
nih.gov
pubmed.ncbi.nlm.nih.gov
Wisniveski-Colli, C.; et al. (1992). "Sylvatic American trypanosomiasis in Argentina. Trypanosoma cruzi infection in mammals from the Chaco forest in Santiago del Estero". Transactions of the Royal Society of Tropical Medicine and Hygiene. 86 (1): 38–41. doi:10.1016/0035-9203(92)90433-D. PMID1566301.
Burger, J. (1984). "Grebes nesting in gull colonies: protective associations and early warning". American Naturalist. 123 (3): 327–337. doi:10.1086/284207. JSTOR2461099. S2CID85305462.