http://www.saber.ula.ve/handle/123456789/4533 1978 Wed, 27 May 2026 17:56:28 GMT 2026-05-27T17:56:28Z http://www.saber.ula.ve/handle/123456789/22312 Notas de Matemática Tue, 07 Mar 2006 09:00:00 GMT http://www.saber.ula.ve/handle/123456789/22312 2006-03-07T09:00:00Z http://www.saber.ula.ve/handle/123456789/22311 A generalized spectral napping theoret. Panchapagesan T., Venkataramaiyer; Palled V., Shivappa Mon, 08 Aug 2005 09:00:00 GMT http://www.saber.ula.ve/handle/123456789/22311 2005-08-08T09:00:00Z