@article{10_37236_8847,
     author = {Sergey Norin and Bruce Reed and Andrew Thomason and David R. Wood},
     title = {A lower bound on the average degree forcing a minor},
     journal = {The electronic journal of combinatorics},
     year = {2020},
     volume = {27},
     number = {2},
     doi = {10.37236/8847},
     zbl = {1442.05218},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/8847/}
}