%0 Journal Article
%T Open Education: An Operational Definition and Validation in Great Britain and United States1:
%A Walberg, Herbert J. 
%A Thomas, Susan Christie
%J American Educational Research Journal
%V 9
%N 2
%P 197-208
%@ 0002-8312
%D 2016-06-24
%I SAGE Publications
%~ DeepDyve