%0 Conference Proceedings %A Saerbeck, Martin %A Schut, Tom %A Bartneck, Christoph %A Janse, Maddy %D 2010 %T Expressive robots in education - Varying the degree of social supportive behavior of a robotic tutor %B 28th ACM Conference on Human Factors in Computing Systems (CHI2010) %C Atlanta %I ACM %P 1613-1622 %! Expressive robots in education - Varying the degree of social supportive behavior of a robotic tutor %R 10.1145/1753326.1753567