Virtual Schools Report 2016:

http://nepc.colorado.edu/files/publications/RB-Miron%20Virtual%20Schools.pdf

Directory and Performance Review. Gary Miron: Western Michigan University. Charisse Gulosino: University of Memphis.
April 2016.

Virtual Schools in the US 2015:

http://nepc.colorado.edu/files/rb-virt-2015-all.pdf

Politics, performance, policy and research evidence.

Alex Molnar, Editor. University  of Colorado Boulder.  March 2015.