@article{10_21136_CPM_1964_117510,
     author = {Neuman, Franti\v{s}ek},
     title = {On a certain ordering of the vertices of a tree},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {323--339},
     publisher = {mathdoc},
     volume = {089},
     number = {3},
     year = {1964},
     doi = {10.21136/CPM.1964.117510},
     mrnumber = {0181587},
     zbl = {0131.20901},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1964.117510/}
}