Products of derivations which act as Lie derivations on commutators of right ideals. De Filippis, V. — 2006 International Journal of Mathematics and Mathematical Sciences
Posner's second theorem and an annihilator condition. De Filippis, V.; Di Vincenzo, O.M. — 2001 Mathematica Pannonica
Prime rings with hypercommuting derivations on a Lie ideal V. De Filippis; O. M. Di Vincenzo — 1999 Rendiconti del Seminario Matematico della Università di Padova
On the generalized hypercentralizer of a Lie ideal in a prime ring V. De Filippis; O. M. Di Vincenzo — 1998 Rendiconti del Seminario Matematico della Università di Padova