@article{article906f271d,
title   = {Hardness and inapproximability of convex recoloring problems},
author = {Campêlo, Manoel and Huiban, Cristiana Gomes and Sampaio, Rudini Menezes and Wakabayashi, Yoshiko},
year = {2014},
doi = {10.1016/j.tcs.2014.03.017},
journal   = {Theoretical Computer Science}
}