A Utility Map Transformation System Based on Map Understanding. - Koji Wakimoto; Yoji Maeda; Mitsuhide Shima; Akira Maeda; Nobuyuki Chikada (MVA, 1988)

Object-Oriented Multimedia Annotation for Large-Scale Mapping System. - Shigeru Shimada; Kazuyuki Suzuki; Yuriko Yoshizawa; Nobuyuki Chikada (DASFAA, 1991)