Intergenerational Transfers: Associations with Adult Children’s Emotional Support of Their Parents
S. Sommer, H.M. Buhl, Journal of Adult Development 25 (2018) 286–296.

Developing feedback: How children of different age contribute to a tutoring interaction with adults
A.-L. Vollmer, K. Pitsch, K.S. Lohan, J. Fritsch, K. Rohlfing, B. Wrede, in: Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning, 2010, pp. 76–81.