NOVÁK, P.; ZUKAL, D. Galium divaricatum Pourr. ex Lam. (Rubiaceae) – a new species for the flora of Ukraine. Acta Botanica Croatica, [S. l.], v. 77, n. 2, 2018. Disponível em: http://www.abc.botanic.hr/index.php/abc/article/view/1953. Acesso em: 28 jan. 2022.