APA: 
Kempe, Stephan (2004). Natural speleothem damage in Postojnska jama (Slovenia), caused by glacial cave ice?. 
Acta carsologica, letnik 33, številka 1, str. 265-289. 
URN:NBN:SI:doc-Q9Z31VY2 from http://www.dlib.si
 
                           MLA: 
Kempe, Stephan. "Natural speleothem damage in Postojnska jama (Slovenia), caused by glacial cave ice?." 
Acta carsologica letnik 33. številka 1 (2004) str. 265-289.
<http://www.dlib.si/?URN=URN:NBN:SI:doc-Q9Z31VY2>