Notas de Matemática - N° 109 http://www.saber.ula.ve/handle/123456789/4589 1991 Fri, 15 May 2026 09:24:16 GMT 2026-05-15T09:24:16Z Notas de Matemática http://www.saber.ula.ve/handle/123456789/22436 Notas de Matemática Tue, 07 Mar 2006 09:00:00 GMT http://www.saber.ula.ve/handle/123456789/22436 2006-03-07T09:00:00Z Quasi-semigroups, evolution equation and controllability. http://www.saber.ula.ve/handle/123456789/22435 Quasi-semigroups, evolution equation and controllability. Leiva A., Hugo Antonio; Bárcenas Morillo, Diomedes José Wed, 17 Aug 2005 09:00:00 GMT http://www.saber.ula.ve/handle/123456789/22435 2005-08-17T09:00:00Z