Esteban De La Fuente Rubio Miguel Gutiérrez Gaitán LibreDTE: Software Tools and Support for Electronic Invoicing in Chile. 1-6 2021 SCCC https://doi.org/10.1109/SCCC54552.2021.9650391 conf/sccc/2021 db/conf/sccc/sccc2021.html#RubioG21