Unsolvable power flow - restoring solutions of the electric power network equations. - Luciano V. Barboza; André Arthur Perleberg Lerm; Roberto S. Salgado (ISCAS (5), 2005)

On the determination of adjusted OPF solutions. - C. F. Moyano; Roberto S. Salgado; Luciano V. Barboza (ISCAS, 2006)