@misc{AFRNUC_1977__33_185779,
     title = {[unknown]},
     journal = {Acta Facultatis Rerum Naturalium Universitatis Comenianae},
     pages = {7--216},
     publisher = {mathdoc},
     volume = {33},
     year = {1977},
     url = {http://geodesic.mathdoc.fr/item/AFRNUC_1977__33_185779/}
}