Distribution of butterflies and skippers in Europe : (Lepidoptera: Rhopalocera, Grypocera) : 24 years mapping European butterflies (1995-2019) : final report / Otakar Kudrna .  Prachatice :  Spolecnost pro Ochranu Motylu (SOM),  2019  364 stran   [1, currently available 1]