@article{CMUC_1978_19_2_a2,
     author = {Koubek, V\'aclav},
     title = {Graphs with given subgraphs represent all categories. {II}},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {249--264},
     year = {1978},
     volume = {19},
     number = {2},
     mrnumber = {0498229},
     zbl = {0375.18004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1978_19_2_a2/}
}