Eunice Njeri Mwangi Marta Díaz Emilia I. Barakova Andreu Català Matthias Rauterberg Can Children Take Advantage of Nao Gaze-Based Hints During GamePlay? 421-424 2017 HAI https://doi.org/10.1145/3125739.3132613 conf/hai/2017 db/conf/hai/hai2017.html#MwangiDBCR17