Choosability and fractional chromatic numbers, Graphs and Combinatorics, pp.165-166, 1997. ,
DOI : 10.1016/S0012-365X(96)00159-8
URL : https://doi.org/10.1016/s0012-365x(96)00159-8
Choosability in graphs, Congr. Numer, vol.26, pp.125-157, 1980. ,
Some results on (a : b)-choosability, pp.2260-2270, 2009. ,
Every 2-choosable graph is (2m, m)-choosable, Journal of Graph Theory, vol.22, issue.3, pp.245-252, 1996. ,
DOI : 10.1002/(SICI)1097-0118(199607)22:3<245::AID-JGT5>3.0.CO;2-M