Active power electronic transformer based on modular building blocksRoasto, Indrek; Romero-Cadaval, Enrique; Martins, JoaoProceedings : IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society : Austria Center Vienna, Vienna, Austria, 10-14 November, 20132013 / p. 5922-5927 : ill https://doi.org/10.1109/IECON.2013.6700106 Conference Proceedings at Scopus Article at Scopus