Lukanov, H. A. Genchev. Fibromelanosis in domestic chickens(PDF). Agricultural Sciences and Technology. 2013, 5 (3): 239–246 [2018-07-17]. (原始内容存档(PDF)于2015-02-05).
Lukanov, H. A. Genchev. Fibromelanosis in domestic chickens(PDF). Agricultural Sciences and Technology. 2013, 5 (3): 239–246 [2018-07-17]. (原始内容存档(PDF)于2015-02-05).