Welzel, M. (1997): Student Centred Instruction and Learning Processes in Physics.

Welzel, M. (1997). Student Centred Instruction and Learning Processes in Physics.. Research in Science Education, 27(3), 383–394.@article{welzel1997b, title={Student Centred Instruction and Learning Processes in Physics.}, author={Manuela Welzel}, year={1997}, journal={Research in Science Education}, volume={27}, number={3}, pages={383--394} } 