@inproceedingsVollmer_Lohan_Fischer_Nagai_Pitsch_Fritsch_Rohlfing_Wrede_2009, title=People modify their tutoring behavior in robot-directed interaction for action learning, DOI=10.1109/DEVLRN.2009.5175516, booktitle=Development and Learning, 2009. ICDL 2009. IEEE 8th International Conference on Development and Learning, publisher=IEEE, author=Vollmer, Anna-Lisa and Lohan, Katrin Solveig and Fischer, Kerstin and Nagai, Yukie and Pitsch, Karola and Fritsch, Jannik and Rohlfing, Katharina and Wrede, Britta, year=2009, pages=1–6