SENNIKOV, A. N.; KURTTO, A. The taxonomy and invasion status assessment of Erigeron annuus s.l. (Asteraceae) in East Fennoscandia. Memoranda Societatis pro Fauna et Flora Fennica, [S. l.], v. 95, p. 40–59, 2019. Disponível em: https://journal.fi/msff/article/view/79497. Acesso em: 20 huhti. 2024.