Optimal Portfolio Management for Engineering Problems Using Nonconvex Cardinality Constraint: A Computing Perspective - Khan, Ameer Hamza; Cao, Xinwei; Vasilios N. Katsikis; Stanimirović, Predrag; Brajević, Ivona; Shuai Li; Kadry, Seifedine; Nam, Yunyoung (IEEE Access, 2020)