On the power-commutative kernel of locally nilpotent groups. - Costantino Delizia; Chiara Nicotera (Int. J. Math. Math. Sci., 2005)

Groups in which every non-nilpotent subgroup is self-normalizing. - Costantino Delizia; Urban Jezernik; Primoz Moravec; Chiara Nicotera (Ars Math. Contemp., 2018)