Coexistence of ferromagnetism and Kondo effect in the underscreened Kondo latticeN. B. Perkins, J. R. Iglesias, M. D. Núñez-Regueiro and B. CoqblinEPL, 79 5 (2007) 57006DOI: https://doi.org/10.1209/0295-5075/79/57006