@Other{WeinbergerSchmittTsovaltzi_2019, title={Effects of process heterogeneity in collaborative learning with tablets}, author={Weinberger, Armin and Schmitt, Lara Johanna and Tsovaltzi, Dimitra}, doi={http://dx.doi.org/10.22028/D291-36043}, publisher={RWTH Aachen}, year={2019} }