Lacković, D., B. Šmida, N. Horvatinčić, and D. Tibljaš. “Some Geological Observations in Slovačka Jama Cave (-1268m) in Velebit Mountain, Croatia”. Acta Carsologica, vol. 28, no. 2, June 2016, doi:10.3986/ac.v28i2.487.