@article{ARM_1968_4_2_a6,
     author = {Sekanina, Milan},
     title = {Errata to the paper {M.} {Sekanina:} {Categories} of ordered sets},
     journal = {Archivum mathematicum},
     pages = {131},
     year = {1968},
     volume = {4},
     number = {2},
     mrnumber = {0263722},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1968_4_2_a6/}
}