APA: 
Čeh, Barbara, Čerenak, Andreja, Majer, Dušica (2009). Potassium and proline content in hop leaves as biochemical marker for drought stress tolerance. 
Hmeljarski bilten, letnik 16, številka 1. 
URN:NBN:SI:DOC-1SRDDJYS from http://www.dlib.si
MLA: 
Čeh, Barbara, Čerenak, Andreja, Majer, Dušica. "Potassium and proline content in hop leaves as biochemical marker for drought stress tolerance." 
Hmeljarski bilten letnik 16. številka 1 (2009).
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-1SRDDJYS>