HyOctane : A HyTime Engine for an MMIS. - John F. Koegel; Lloyd Rutledge; John L. Rutledge; Can Keskin (ACM Multimedia, 1993)

HyOctane: A HyTime Engine for an MMIS. - John F. Buford; Lloyd Rutledge; John L. Rutledge; Can Keskin (Multim. Syst., 1994)

Integration of Declarative Approaches. - Arne Frick; Can Keskin; Volker Vogelmann (GD, 1996)

Effective Visualization of Hierarchical Graphs with the Cityscape Metaphor. - Can Keskin; Volker Vogelmann (Workshop on New Paradigms in Information Visualization and Manipulation, 1997)