Preface to the special issues devoted to CLEI 2015.
Hernán AstudilloDennis Barrios-AranibarGuillermo Calderón-RuizHéctor CancelaTony ClearNelly Condori-FernándezAlex Cuadros-VargasDiego PintoAdenilso SimãoPaco TiradoYván TúpacPublished in: CLEI Electron. J. (2016)