JANUŠAUSKAITĖ, Nijolė. Necessary optimal conditions for singular control in the discrete systems with distributed control. Lietuvos matematikos rinkinys, [S. l.], v. 43, n. spec., p. 640–642, 2003. DOI: 10.15388/LMR.2003.32543. Disponível em: https://www.journals.vu.lt/LMR/article/view/32543.. Acesso em: 16 may. 2024.