URN:NBN:SI:DOC-OQ9HNV522025Malnič, AleksanderZgrablić, Borisdocuments/doc/O/URN_NBN_SI_doc-OQ9HNV52_001.pdfdocuments/doc/O/URN_NBN_SI_doc-OQ9HNV52_001.txt253articlestr. 1-2910.26493/1855-3974.3267.7d41855-3966200176899URN:NBN:SI:doc-OQ9HNV52engUniverza na Primorskem, Fakulteta za matematiko, naravoslovje in informacijske tehnologijeArs mathematica contemporaneaBYcovering projectiondartgeneral digraphhomotopylifting automorphismsmixed graphmonoid actionvoltage