Hauptmanová, K., Baruš, V., Literák, I., Benedikt, V. Haemoproteids and microfilariae in hawfinches in the Czech Republic. Helminthologia. 2004, 41(3), 125-133. ISSN 0440-6605. E-ISSN 1336-9083. Available: http://www.saske.sk/pau/helminthologia/2004_3/Hauptman121.pdf