@article{10_21136_CPM_1986_118279,
     author = {Dupa\v{c}, V\'aclav},
     title = {K nedo\v{z}it\'ym \v{s}edes\'atin\'am profesora {Jaroslava} {H\'ajka}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {436--437},
     publisher = {mathdoc},
     volume = {111},
     number = {4},
     year = {1986},
     doi = {10.21136/CPM.1986.118279},
     mrnumber = {871719},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1986.118279/}
}