Bogdanovic, Sandro, and Mirko Ruscic. “Pimpinella Tragium Vill. Subsp. Lithophila (Schischk.) Tutin (Apiaceae), a New Taxon in Croatian Flora”. Acta Botanica Croatica, vol. 70, no. 1, Apr. 2011, https://www.abc.botanic.hr/index.php/abc/article/view/397.