Experiments with Face-To-Face Collaborative AR Interfaces. - Mark Billinghurst; Hirokazu Kato 001; Kiyoshi Kiyokawa; Daniel Belcher; Ivan Poupyrev (Virtual Real., 2002)

Using Augmented Reality for Visualizing Complex Graphs in Three Dimensions. - Daniel Belcher; Mark Billinghurst; Sean Hayes; Randy Stiles (ISMAR, 2003)

Communication Behaviors in Colocated Collaborative AR Interfaces. - Mark Billinghurst; Daniel Belcher; Arnab Gupta; Kiyoshi Kiyokawa (Int. J. Hum. Comput. Interact., 2003)