ÅSTRÖM, H.; HÆGGSTRÖM, C.-A. Lassdal, an old ballast site in eastern Nyland, S Finland. Memoranda Societatis pro Fauna et Flora Fennica, [S. l.], v. 91, 2015. Disponível em: https://journal.fi/msff/article/view/53549. Acesso em: 3 touko. 2024.