Roussel, NicolasNicolasRoussel2012-03-092018-06-282012-03-092018-06-282011http://ntur.lib.ntu.edu.tw//handle/246246/238908en-USTotal choosability of planar graphs with maximum degree 4journal article10.1016/j.dam.2010.10.001http://ntur.lib.ntu.edu.tw/bitstream/246246/238908/-1/62.pdf