Secondo-grid: an Infrastructure to Study Spatial Databases in Computational Grids. - Wladimir S. Meyer; Jano Moreira de Souza; Milton Ramos Ramirez (GEOINFO, 2005)

Spatial Query Broker in a Grid Environment. - Wladimir S. Meyer; Milton Ramos Ramirez; Jano Moreira de Souza (GEOINFO, 2006)