Methods for coopetition and retention analysis : an application to university management = Koopetitsiooni ja väljalangevuse uurimise meetodid : rakendus ülikooli juhtimisesÜbi, Jaan2014 https://www.ester.ee/record=b3090746*est Predicting student retention by comparing histograms of bootstrapping for Charnes-Cooper transformation-linear programming discriminant analysisÜbi, Jaan; Übi, Evald; Liiv, Innar; Võhandu, Leo2013 Second International Conference on e-Learning and e-Technologies in Education (ICEEE 2013) : proceedings of a meeting held 23-25 September 2013, Lodz, Poland2013 / p. 110-114 : ill Predicting student retention by linear programming discriminant analysisÜbi, Jaan; Übi, Evald; Liiv, Innar; Murtazin, KristinaInternational journal of technology and educational marketing2014 / p. 43-53 : ill