Reference

Terezie Peskarova, Alois Pavlicko, Tomás Kuras, Zdenek Faltynek Fric, Martin Konvicka (2024): Population status of the highly endangered Lycaena helle (Papilionoidea, Lycaenidae) in the Šumava Mts. two decades after establishment – Nota lepidopterologica – 47: 171 - 186.