@misc{AFRNUC_1967__17_185778,
     title = {[unknown]},
     journal = {Acta facultatis rerum naturalium Universitatis Comenianae},
     pages = {15--323},
     year = {1967},
     volume = {17},
     url = {http://geodesic.mathdoc.fr/item/AFRNUC_1967__17_185778/}
}