VLADIMIROV, V.; TASHEV, A.; TASHEV, N. Contribution to the Knowledge of the Invasive Alien Species of Heracleum (Apiaceae) in Bulgaria. Proceedings of the Bulgarian Academy of Sciences, Sofia, Bulgaria, v. 78, n. 5, p. 670–675, 2025. DOI: 10.7546/CRABS.2025.05.04. Disponível em: https://www.proceedings.bas.bg/index.php/cr/article/view/759. Acesso em: 11 oct. 2026.