Vig Károly: Zoological Research in Western Hungary. A history (Szombathely, 2003)
Phylum Vertebrata 195 Figure 14.5. Bearded tits (Panurus biarmicus), a watercolour by ISTVÁN CHERNÉL
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Phylum Vertebrata 195 Figure 14.5. Bearded tits (Panurus biarmicus), a watercolour by ISTVÁN CHERNÉL