@article{10_21136_CPM_1982_118129,
     author = {P{\l}onka, Jerzy},
     title = {On some regularities of graphs. {I}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {231--240},
     publisher = {mathdoc},
     volume = {107},
     number = {3},
     year = {1982},
     doi = {10.21136/CPM.1982.118129},
     mrnumber = {673047},
     zbl = {0505.05058},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1982.118129/}
}