@article{10_21136_CPM_1981_108486,
     author = {Zelinka, Bohdan},
     title = {On two graph-theoretical problems from the conference at {Nov\'a} {Ves} u {Bran\v{z}e\v{z}e}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {409--413},
     publisher = {mathdoc},
     volume = {106},
     number = {4},
     year = {1981},
     doi = {10.21136/CPM.1981.108486},
     mrnumber = {637821},
     zbl = {0473.05052},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1981.108486/}
}