@article{10_21136_CMJ_1968_100831,
     author = {Kim, Jin Bai},
     title = {On singular matrices},
     journal = {Czechoslovak Mathematical Journal},
     pages = {274--277},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {1968},
     doi = {10.21136/CMJ.1968.100831},
     mrnumber = {0228602},
     zbl = {0157.07102},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1968.100831/}
}