LAGOVirtual: A Collaborative Environment for the Large Aperture GRB Observatory - R. Camacho; Reinaldo Chacón; Gilberto Díaz; C. Guada; Vanessa Hamar; Herbert Hoeger; A. Melfo; Luis A. Núñez; Y. Pérez; Carlos Quintero; M. Rosales; Rodrigo Torrens (CoRR, 2009)