%0 Journal Article %A Margit Voigt %A Arnfried Kemnitz %T A note on not-4-list colorable planar graphs %J The electronic journal of combinatorics %D 2018 %V 25 %N 2 %U http://geodesic.mathdoc.fr/articles/10.37236/7320/ %R 10.37236/7320 %F 10_37236_7320