This is the gaceta.cls LaTeX class, which is intended to write papers for <>, a journal of the Real Sociedad Matem\'atica Espa\~nola, http://www.rsme.es/ As examples of use of gaceta.cls, we provide two templates: plantilla-articulo-suelto.tex plantilla-articulo-de-seccion.tex (with its corresponding pdf files). La Gaceta of the RSME is written in Spanish, so the templates are also in Spanish. Version: 1.0, 2008/02/13 Author: Juan L. Varona jvarona at unirioja dot es http://www.unirioja.es/cu/jvarona/ License: LaTeX Project Public License (LPPL), any version