Baas, M, Admiraal, W and van den Berg, E. 2019. Teachers’ Adoption of Open Educational Resources in Higher Education. Journal of Interactive Media in Education, 2019(1): 9, pp. 1–11. DOI: https://doi.org/10.5334/jime.510Open Educational Resources (OER) have the potential to change the domain of higher …

Several models in data analysis are estimated by minimizing the objective function defined as the residual sum of squares between the model and the data. A necessary and sufficient condition for the existence of a least squares estimator is that the objective function attains its infimum at a unique …