Notas de Matemática - Nº 284 http://www.saber.ula.ve/handle/123456789/31985 2009 Fri, 15 May 2026 11:20:40 GMT 2026-05-15T11:20:40Z Separation axioms and the prime spectrum of commutative semirings http://www.saber.ula.ve/handle/123456789/31986 Separation axioms and the prime spectrum of commutative semirings Peña, Alirio; Ruza, Luz M.; Vielma, Jorge Mon, 29 Nov 2010 21:00:26 GMT http://www.saber.ula.ve/handle/123456789/31986 2010-11-29T21:00:26Z