An optical see-through display for mutual occlusion of real and virtual environments. - Kiyoshi Kiyokawa; Yoshinori Kurata; Hiroyuki Ohno (ISAR, 2000)

An optical see-through display for mutual occlusion with a real-time stereovision system. - Kiyoshi Kiyokawa; Yoshinori Kurata; Hiroyuki Ohno (Comput. Graph., 2001)

Occlusive optical see-through displays in a collaborative setup. - Kiyoshi Kiyokawa; Hiroyuki Ohno; Yoshinori Kurata (SIGGRAPH Abstracts and Applications, 2002)