@article{article8b9b581c,
title   = {Witnessing spin-orbit thermal entanglement in rare-earth ions},
author = {Duarte, O. S. and Castro, C. S. and Pinto, Diogo de Oliveira Soares and Reis, M. S.},
year = {2013},
doi = {10.1209/0295-5075/103/40002},
journal   = {Europhysics Letters - EPL}
}