@article{CMUC_1984_25_2_a19,
     author = {Korec, Ivan},
     title = {Results on disjoint covering systems on the ring of integers},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {365--368},
     year = {1984},
     volume = {25},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1984_25_2_a19/}
}