http://www.saber.ula.ve/handle/123456789/4546 1980 Tue, 09 Jun 2026 11:59:43 GMT 2026-06-09T11:59:43Z http://www.saber.ula.ve/handle/123456789/22338 Notas de Matemática Tue, 07 Mar 2006 09:00:00 GMT http://www.saber.ula.ve/handle/123456789/22338 2006-03-07T09:00:00Z http://www.saber.ula.ve/handle/123456789/22337 On a problem of Samuel. Markanda, Raj K.; Pascual García, Joaquín; Santodomingo, José Mon, 08 Aug 2005 09:00:00 GMT http://www.saber.ula.ve/handle/123456789/22337 2005-08-08T09:00:00Z