Borkin Leo J. RussiaSaint PetersburgZoological Institute, Russian Academy of Sciences, 1 Universitetskaya Emb., Saint Petersburg 199034, RussiaLeo.Borkin@zin.ru Author's articles Svetlana Dmitrievna Vershinina (1961–2021): Her life and contribution to herpetology In commemoration of Jury M. Rosanov (1938–2021)