Eliciting the challenges and opportunities organizations face when delivering open online education: A group-concept mapping study. - Martine Schophuizen; Karel Kreijns; Slavi Stoyanov; Marco Kalz (Internet High. Educ., 2018)

Does project focus influence challenges and opportunities of open online education? A sub-group analysis of group-concept mapping data. - Martine Schophuizen; Karel Kreijns; Slavi Stoyanov; Scott Rosas; Marco Kalz (J. Comput. High. Educ., 2021)