@article{CMUC_2013_54_3_a2,
     author = {Zhang, Haihui},
     title = {On $(4,1)^*$-choosability of toroidal graphs without chordal 7-cycles and adjacent 4-cycles},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {339--344},
     year = {2013},
     volume = {54},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2013_54_3_a2/}
}