Wilson ratio in Yb-substituted CeCoIn5 C. Capan, G. Seyfarth, D. Hurt, B. Prevost, S. Roorda, A. D. Bianchi and Z. Fisk EPL, 92 4 (2010) 47004 Published online: 03 December 2010 DOI: 10.1209/0295-5075/92/47004