@article{MASLO_1980_30_1_a6,
     author = {Zelinka, Bohdan},
     title = {Bases of classes of trees closed under subdivisions},
     journal = {Mathematica slovaca},
     pages = {61--64},
     year = {1980},
     volume = {30},
     number = {1},
     mrnumber = {568215},
     zbl = {0427.05026},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1980_30_1_a6/}
}