The virtPresenter lecture recording system: Automated production of web lectures with interactive content overviewsRobert Mertens, Oliver Vornberger, Markus Ketterl|Interactive Technology and Smart Education|2007Cited by 36
Bringing Web 2.0 to web lecturesMarkus Ketterl, Oliver Vornberger, Robert Mertens|Interactive Technology and Smart Education|2009Cited by 23
Integrating Lecture Recording with an LMS: An Implementation ReportRobert Mertens, Rüdiger Rolf, Markus Ketterl et al.|Unknown|2008Cited by 11
Social navigation in web lectures: a study of virtPresenterRobert Mertens, Peter Brusilovsky, Markus Ketterl|Interactive Technology and Smart Education|2010Cited by 9
Studying with Mobile Devices: Workflow and Tools for Automatic Content DistributionMarkus Ketterl, Oliver Vornberger, Karsten Morisse et al.|Unknown|2006Cited by 9