Online Learner Self-Regulation: Learning Presence Viewed through Quantitative Content- and Social Network Analysis - Shea, Peter ; Hayes, Suzanne ; Uzuner Smith, Sedef ; Vickers, Jason ; Bidjerano, Temi ; Gozza-Cohen, Mary ; Jian, Shou-Bang ; Pickett, Alexandra M. ; Wilde, Jane ; Tseng, Chi-Hua (International Review of Research in Open and Distributed Learning, 2013)