Saving is fun: designing a persuasive game for power conservation. - Luciano Gamberini; Nicola Corradi; Luca Zamboni; Michela Perotti; Camilla Cadenazzi; Stefano Mandressi; Giulio Jacucci; Giovanni Tusa; Anna Spagnolli; Christoffer Björkskog; Marja Salo; Pirkka Åman (Advances in Computer Entertainment Technology, 2011)