NIKOLOV, Zoran. Orobanche elatior Sutton and Orobanche centaurina Bertol. (Orobanchaceae) in the locality “Kozjak” (Skopje) in North Macedonia. Acta Musei Macedonici Scientiarum Naturalium, [S.l.], v. 22, n. 1, p. 13-20, dec. 2019. ISSN 2545-4587. Available at: <http://acta.musmacscinat.mk/index.php/acta/article/view/27>. Date accessed: 05 june 2020.