Diffusion of a particle in presence of N moving point sources G. F. Dell'Antonio; R. Figari; A. Teta — 1998 Annales de l'I.H.P. Physique théorique
Hamiltonians for systems of N particles interacting through point interactions G. F. Dell'Antonio; R. Figari; A. Teta — 1994 Annales de l'I.H.P. Physique théorique