@article{10_21136_CMJ_1970_100953,
     author = {Vala, Josef},
     title = {\"Uber einige spezielle {Kongruenzenpaare}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {140--148},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1970},
     doi = {10.21136/CMJ.1970.100953},
     mrnumber = {0261463},
     zbl = {0192.58501},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1970.100953/}
}