Implementation of the finite field perturbation method in the CRYSTAL program for calculating the dielectric constant of periodic systems. - Clovis Darrigan; Michel Rérat; Giuseppe Mallia; Roberto Dovesi (J. Comput. Chem., 2003)

Ab initio calculation of the nonlinear susceptibility ?^{(2)} of a crystal surface. - Isabelle Baraille; Clovis Darrigan; Michel Rérat (J. Comput. Methods Sci. Eng., 2004)

New parallel software (P_Anhar) for anharmonic vibrational calculations: Application to (CH3Li)2. - Neil Gohaud; Didier Bégué; Clovis Darrigan; Claude Pouchan (J. Comput. Chem., 2005)