An analysis of research trends in dissertations and theses studying blended learning. - Jeffery S. Drysdale; Charles R. Graham; Kristian J. Spring; Lisa R. Halverson (Internet High. Educ., 2013)

The nature of teacher engagement at an online high school. - Jered Borup; Charles R. Graham; Jeffery S. Drysdale (Br. J. Educ. Technol., 2014)

A thematic analysis of the most highly cited scholarship in the first decade of blended learning research. - Lisa R. Halverson; Charles R. Graham; Kristian J. Spring; Jeffery S. Drysdale; Curtis R. Henrie (Internet High. Educ., 2014)