Singular perturbation techniques in the study of a dynamical system arising from the kinetic theory of atoms and photons. - Riccardo Riganti; A. Rossani (Appl. Math. Comput., 1998)

Singular perturbation techniques in the study of a diatomic gas with reactions of dissociation and recombination. - M. Galli; Maria Groppi; Riccardo Riganti; Giampiero Spiga (Appl. Math. Comput., 2003)

A numerical approach for inverse problems in photon transport inside an interstellar cloud. - Aldo Belleni-Morante; Roberto Monaco; Riccardo Riganti; Francesco Salvarani (Appl. Math. Comput., 2004)