On general vector quasi-optimization problems. - Angelo Guerraggio; Nguyen Xuan Tan (Math. Methods Oper. Res., 2002)

Second-order conditions in C1, 1 constrained vector optimization. - Ivan Ginchev; Angelo Guerraggio; Matteo Rocca (Math. Program., 2005)

Properly Maximal Points in Product Spaces. - Angelo Guerraggio; Dinh The Luc (Math. Oper. Res., 2006)

Second-order Dini set-valued directional derivative in C 1, 1 vector optimization. - Ivan Ginchev; Angelo Guerraggio; Matteo Rocca (Optim. Methods Softw., 2010)