APA:
Kempe, Stephan, Hubrich, Hans-Peter, Suckstorff, Klaus (2006). The story of the 1833 Fercher survey, Postojnska jama, continues.
Acta carsologica, letnik 35, številka 1, str. 131-138.
URN:NBN:SI:DOC-RSF9R7CP from http://www.dlib.si
MLA:
Kempe, Stephan, Hubrich, Hans-Peter, Suckstorff, Klaus. "The story of the 1833 Fercher survey, Postojnska jama, continues."
Acta carsologica letnik 35. številka 1 (2006) str. 131-138.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-RSF9R7CP>