Ruchin, A. B. (2018). Biology and distribution of the Clouded Apollo Parnassius mnemosyne (Linnaeus, 1758) (Lepidoptera: Papilionidae), a rare butterfly in the Republic of Mordovia, Russia. Journal of Threatened Taxa, 10(7), 11980–11983. https://doi.org/10.11609/jott.3709.10.7.11980-11983