MELE, E.; TSALKITZI, E.; CONSTANTOS, E.; ELIAS, C.; KOUTSOUBIS, Y.; KTENA, A.; MANASIS, C.; TATSIOPOULOS, C.; TATSIOPOULOU, A. GAMIFYING ENERGY USER PROFILES. European Scientific Journal, ESJ, v. 11, n. 10, 9 Sep. 2015.