@article{Lajoie_2020,
title={Understanding and measuring emotions in technology-rich learning environments},
volume={70},
ISSN={0959-4752},
url={http://dx.doi.org/10.1016/j.learninstruc.2019.101272},
DOI={10.1016/j.learninstruc.2019.101272},
journal={Learning and Instruction},
publisher={Elsevier BV},
author={Lajoie,
Susanne P. and Pekrun,
Reinhard and Azevedo,
Roger and Leighton,
Jacqueline P.},
year={2020},
month=dec,
pages={101272} }