“BALKAN GOLDENRING, CORDULEGASTER HEROS THEISCHINGER, 1979 (ODONATA: CORDULEGASTRIDAE), A NEW SPECIES OF ODONATA IN THE FAUNA OF BOSNIA AND HERZEGOVINA”. Acta Entomologica Serbica, vol. 16, no. 1/2, Dec. 2011, pp. 1-7, http://147.91.73.126/index.php/aes/article/view/82.