@misc{ARM_1996_32_4_a0,
     title = {Sixtieth birthday of {Professor} {Ivan} {Kol\'a\v{r}}},
     journal = {Archivum mathematicum},
     pages = {241--248},
     year = {1996},
     volume = {32},
     number = {4},
     mrnumber = {1441396},
     zbl = {0881.01019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1996_32_4_a0/}
}