HÆGGSTRÖM, C.-A. The genus Papaver in the Åland Islands, SW Finland. Memoranda Societatis pro Fauna et Flora Fennica, [S. l.], v. 95, p. 100–112, 2019. Disponível em: https://journal.fi/msff/article/view/88153. Acesso em: 20 huhti. 2024.