A Visual System of Placing Characters Appropriately in Multimedia Map Databases. - Hiromi Aonuma; Hiroshi Imai; Yahiko Kambayashi (VDB, 1989)

Maximin Location of Convex Objects in a Polygon and Related Dynamic Voronoi Diagrams. - Hiromi Aonuma; Hiroshi Imai; Keiko Imai; Takeshi Tokuyama (SCG, 1990)