@inproceedings{SchindlerSeidelBoeheimetal.2019, author = {Ann-Kathrin Schindler and Tina Seidel and R. Boeheim and M. Pielmeier and M. Knogler and M. Alles and A. Gr{\"o}schner}, title = {Understanding teachers' learning zones and change trajectories in teacher professional development}, booktitle = {18th Biennial EARLI Conference - Thinking Tomorrow's Education: Learning from the past, in the present and for the future, 12 - 16 August 2019, Aachen, Germany}, year = {2019}, }