APA: 
Šporin, Jurij (2020). Characterisation of the wear of the roller cone caused by improperly chosen drilling regime. 
RMZ-materials and geoenvironment, str. 1-12. 
URN:NBN:SI:DOC-ZXHULSQ6 from http://www.dlib.si
MLA: 
Šporin, Jurij. "Characterisation of the wear of the roller cone caused by improperly chosen drilling regime." 
RMZ-materials and geoenvironment (2020) str. 1-12.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-ZXHULSQ6>