Vogt, Franziska, Cordula Löffler, Andrea Haid, Nadine Itel, Mandy Schönfelder, Bea Zumwald, and Elke Reichmann. “Fostering Language Development in the Everyday Practices of Kindergarten, Nursery and Playgroups: A Video Study”. Swiss Journal of Educational Research 37, no. 1 (September 20, 2018): 93-112. Accessed July 13, 2020. https://bop.unibe.ch/sjer/article/view/4945.