@article{MASLO_1996__46_1_a1,
     author = {Fu, Hung-Lin and Tsai, Ming-Chun},
     title = {Edge and vertex operations on upper embeddable graphs},
     journal = {Mathematica slovaca},
     pages = {9--19},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {1996},
     mrnumber = {1414405},
     zbl = {0858.05039},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1996__46_1_a1/}
}