Coexistence of ferromagnetism and Kondo effect in the underscreened Kondo lattice N. B. Perkins, J. R. Iglesias, M. D. Núñez-Regueiro and B. Coqblin EPL, 79 5 (2007) 57006 Published online: 01 August 2007 DOI: 10.1209/0295-5075/79/57006