Pecháček, Pavel; Stella, David; Keil, Petr; Kleisner, Karel (1 december 2014). ”Environmental effects on the shape variation of male ultraviolet patterns in the Brimstone butterfly (Gonepteryx rhamni, Pieridae, Lepidoptera)” (på engelska). Naturwissenschaften 101 (12): sid. 1055–1063. doi:10.1007/s00114-014-1244-5. ISSN0028-1042. PMID 25280559.
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Pecháček, Pavel; Stella, David; Keil, Petr; Kleisner, Karel (1 december 2014). ”Environmental effects on the shape variation of male ultraviolet patterns in the Brimstone butterfly (Gonepteryx rhamni, Pieridae, Lepidoptera)” (på engelska). Naturwissenschaften 101 (12): sid. 1055–1063. doi:10.1007/s00114-014-1244-5. ISSN0028-1042. PMID 25280559.
Pecháček, Pavel; Stella, David; Keil, Petr; Kleisner, Karel (1 december 2014). ”Environmental effects on the shape variation of male ultraviolet patterns in the Brimstone butterfly (Gonepteryx rhamni, Pieridae, Lepidoptera)” (på engelska). Naturwissenschaften 101 (12): sid. 1055–1063. doi:10.1007/s00114-014-1244-5. ISSN0028-1042. PMID 25280559.