APA: 
Kos, Janko, Schweiger, Ana (2002). Cathepsins and cystatins in extracellular fluids - useful biological markers in cancer. 
Radiology and oncology (Ljubljana), letnik 36, številka 2, str. 176-179. 
URN:NBN:SI:doc-2KAUQZVZ from http://www.dlib.si
 
                           MLA: 
Kos, Janko, Schweiger, Ana. "Cathepsins and cystatins in extracellular fluids - useful biological markers in cancer." 
Radiology and oncology (Ljubljana) letnik 36. številka 2 (2002) str. 176-179.
<http://www.dlib.si/?URN=URN:NBN:SI:doc-2KAUQZVZ>