Guidelines for Designing Social Robots as Second Language Tutors. - Tony Belpaeme; Paul Vogt; Rianne van den Berghe; Kirsten Bergmann; Tilbe Göksun; Mirjam de Haas; Junko Kanero; James Kennedy 001; Aylin C. Küntay; Ora Oudgenoeg-Paz; Fotios Papadopoulos; Thorsten Schodde; et al. (Int. J. Soc. Robotics, 2018)