Phase diagram of the Kondo necklace model with planar and local anisotropies J. J. Mendoza-Arenas, R. Franco and J. Silva-Valencia Eur. Phys. J. B, 78 4 (2010) 461-467 Published online: 15 December 2010 DOI: 10.1140/epjb/e2010-10634-6