Instructional Design for Java Enterprise Component Technology. - Marco Marcellis; Ella E. Roubtsova; Bert Hoogveld (ICEIS (3), 2009)

The Effect of Online Tasks for Algebra on Student Achievement in Grade 8. - Paul Drijvers; Michiel Doorman; Paul A. Kirschner; Bert Hoogveld; Peter B. J. Boon (Technol. Knowl. Learn., 2014)