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
Hypermedia Navigation Concepts for Lecture RecordingsRobert Mertens, Oliver Vornberger, Olaf Müller et al.|Unknown|2004Cited by 29
Bringing Web 2.0 to web lecturesMarkus Ketterl, Oliver Vornberger, Robert Mertens|Interactive Technology and Smart Education|2009Cited by 23
Studying with Mobile Devices: Workflow and Tools for Automatic Content DistributionMarkus Ketterl, Oliver Vornberger, Karsten Morisse et al.|Unknown|2006Cited by 9
Spaced repetition learning games on mobile devicesFlorian Schimanke, Oliver Vornberger, Robert Mertens|Interactive Technology and Smart Education|2014Cited by 9