@article{DA_2004_11_1_a5,
     author = {L. S. Mel'nikov},
     title = {Families of planar 4-homogeneous 4-critical graphs},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {79--115},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2004_11_1_a5/}
}