Design issues of a distance learning course on Business on the Internet. - Krassen Stefanov; Svetoslav Stoyanov; Roumen Nikolov (J. Comput. Assist. Learn., 1998)

SMILE Maker: A Web-Based Tool for Problem Solving. - Svetoslav Stoyanov; Lora Aroyo; Piet Kommers; Ivan Kurtev (WebNet, 1999)

SMILE: Intelligent Learning Environment Accumulating Personal Styles of Users. - Svetoslav Stoyanov; Neli Stoyanova (WebNet, 2000)