Temel, Sedat2021-04-162021-04-162021-04-011576-9402https://riunet.upv.es/handle/10251/165237[EN] The aim of this paper is to obtain a group-2-groupoid as a 2-groupoid object in the category of groups and also as a special kind of an internal category in the category of group-groupoids. Corresponding group-2-groupoids, we obtain some categorical structures related to crossed modules and group-groupoids and prove categorical equivalences between them. These results enable us to obtain 2-dimensional notions of group-groupoids.Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)Crossed moduleGroup-groupoid2-groupoidFurther remarks on group-2-groupoidsArtÃculo10.4995/agt.2021.13148Abierto1989-4147