DORONINA, A. J.; PIIRAINEN, M. History of the floristic study of the Karelian Isthmus, Leningrad Region. Memoranda Societatis pro Fauna et Flora Fennica, [S. l.], 2009. Disponível em: https://journal.fi/msff/article/view/2585. Acesso em: 23 kesä. 2024.