@article{articled71360cc,
title   = {On degree–degree correlations in multilayer networks},
author = {Arruda, Guilherme Ferraz de and Cozzo, Emanuele and Moreno, Yamir and Rodrigues, Francisco Aparecido},
year = {2016},
doi = {10.1016/j.physd.2015.11.004},
journal   = {Physica D: Nonlinear Phenomena}
}