A. Ho, J. Reich, S. Nesterko, D. Seaton, T. Mullaney, J. Waldo, und I. Chuang. Ho, AD, Reich, J., Nesterko, S., Seaton, DT, Mullaney, T., Waldo, J., & Chuang, I.(2014). HarvardX and MITx: The first year of open online courses (HarvardX and MITx Working Paper No. 1), (2014)
T. Daradoumis, R. Bassi, F. Xhafa, und S. Caballé. P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC), 2013 Eighth International Conference on, Seite 208-213. IEEE, (2013)