@article{MASLO_1971_21_2_a12,
     author = {Gregu\v{s}, Michal and Ducho\v{n}, Miloslav},
     title = {Recenzie},
     journal = {Mathematica slovaca},
     pages = {174--175},
     year = {1971},
     volume = {21},
     number = {2},
     language = {sk},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1971_21_2_a12/}
}