Brana, S., N. Vukovic, and M. Kaligaric. “Least adder’s-Tongue (Ophioglossum Lusitanicum L.) in Croatia – Distribution, Ecology and Conservation”. Acta Botanica Croatica, vol. 73, no. 2, Oct. 2014, https://www.abc.botanic.hr/index.php/abc/article/view/1087.