A microscopic NN → NN ⋆(1440) potential B. Juliá-Díaz, A. Valcarce, P. González and F. Fernández Eur. Phys. J. A, 19 3 (2004) 99-104 Published online: 12 February 2004 DOI: 10.1140/epjad/s2004-03-017-9