Einstein's causality as a consequence of equal-time commutation relations in some soluble models P. De Mottoni; E. Salusti — 1973 Annales de l'I.H.P. Physique théorique
On a differential equation approach to quantum field theory : causality property for the solutions of Thirring's model P. De Mottoni; E. Salusti — 1971 Annales de l'I.H.P. Physique théorique