Supporting the use of multiple representations in multimedia learning environments. - Maria Opfermann; Jan van der Meij; Shaaron Ainsworth; Tina Seufert; Markus Vogel; Roland Brünken; Jan L. Plass; Bruce D. Homer; Yan Wang; Minchi Kim; Catherine Milne; Trace Jordan; et al. (ICLS (3), 2008)

Design Factors for Effective Science Simulations: Representation of Information. - Jan L. Plass; Bruce D. Homer; Catherine Milne; Trace Jordan; Slava Kalyuga; Minchi Kim; Hyunjeong Lee (Int. J. Gaming Comput. Mediat. Simulations, 2009)