@article{10_37236_8111, author = {Ron Aharoni and Eli Berger and Maria Chudnovsky and Fr\'ed\'eric Havet and Zilin Jiang}, title = {Cooperative colorings of trees and of bipartite graphs}, journal = {The electronic journal of combinatorics}, year = {2020}, volume = {27}, number = {1}, doi = {10.37236/8111}, zbl = {1432.05036}, url = {http://geodesic.mathdoc.fr/articles/10.37236/8111/} }