@article{PMFA_1976_21_6_a1,
     author = {Hajko, Vladim{\'\i}r},
     title = {Refer\'at na {XV.} sjezdu {KS\v{C}}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {303--306},
     year = {1976},
     volume = {21},
     number = {6},
     language = {sk},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1976_21_6_a1/}
}