Vladimirov V, Bancheva S, Ivanova D. Contribution to the Knowledge of Pontechium maculatum(Boraginaceae), a Species of High Conservation Concern in the Bulgarian Flora. C. R. Acad. Bulg. Sci. [Internet]. 2023 Feb. 26 [cited 2023 Mar. 23];76(2):203-10. Available from: https://proceedings.bas.bg/index.php/cr/article/view/249