@article{10_21136_CPM_1988_118337,
     author = {Zelinka, Bohdan},
     title = {Two local properties of graphs},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {113--121},
     publisher = {mathdoc},
     volume = {113},
     number = {2},
     year = {1988},
     doi = {10.21136/CPM.1988.118337},
     mrnumber = {949039},
     zbl = {0656.05056},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1988.118337/}
}