Reference:
De Meulemeester, Thibaut & Aytekin, A. & Valterová, Irena & Rasmont, Pierre. (2009). Landmark based geometric morphometrics analysis of wing shape as a tool for Bombus s.str. taxonomy (Hymenoptera:Apidae).URL:
https://www.researchgate.net/profile/Peter_Kozmus/publication/225509974_Identification_of_Bombus_species_based_on_wing_venation_structure/links/574ed51e08aefc38ba1207fd/Identification-of-Bombus-species-based-on-wing-venation-structure.pdfLiterature
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