@article{DMGT_2004_24_1_a10,
     author = {Wang, Ping and Wu, Jian-Liang},
     title = {A note on total colorings of planar graphs without 4-cycles},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {125--135},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2004_24_1_a10/}
}