URN:NBN:SI:doc-WBU5PMY31989Raztresen, Marjandocuments/doc/W/URN_NBN_SI_doc-WBU5PMY3_001.pdfdocuments/doc/W/URN_NBN_SI_doc-WBU5PMY3_001.txt18989, št. 1 (1989), str. 9-10.article0350-434436828416URN:NBN:SI:doc-WBU5PMY3slvPlaninska zveza SlovenijePlaninski vestnikInCalpinizemmountaineeringplezalna vrvtestiranje