KRYŠTUFEK, Boris, GLASNOVIĆ, Peter and PETKOVSKI, Svetozar, 2012, The status of a rare phylogeographic lineage of the vulnerable European souslik Spermophilus citellus, endemic to central Macedonia. [online]. 2012. Vol. 46, no. 3, p. 442–445. [Accessed 9 April 2025]. Retrieved from: http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8555600&fulltextType=BT&fileId=S003060531200004X