Spin coherent states in NMR quadrupolar system: experimental and theoretical applications Ruben Auccaise Estrada, Eduardo Ribeiro de Azevedo, Eduardo Inacio Duzzioni, Tito Jose Bonagamba and Miled Hassan Youssef Moussa Eur. Phys. J. D, 67 6 (2013) 127 Published online: 27 June 2013 DOI: 10.1140/epjd/e2013-30689-1