@article{10_37236_5971, author = {Landon Rabern}, title = {A better lower bound on average degree of 4-list-critical graphs}, journal = {The electronic journal of combinatorics}, year = {2016}, volume = {23}, number = {3}, doi = {10.37236/5971}, zbl = {1344.05049}, url = {http://geodesic.mathdoc.fr/articles/10.37236/5971/} }