A study of document format identification based on table structure. - Tsutomu Matsunaga; Atsumi Tokumasu; Osamu Iwaki (SMC, 1989)

A functional classification approach to layout analysis of document images. - Kazumi Iwane; Masaki Yamaoka; Osamu Iwaki (ICDAR, 1993)

Document Layout Analysis Using Pattern Classification Method. - Masaki Yamaoka; Osamu Iwaki (ICSC, 1995)

Approximate matching for OCR-processed bibliographic data. - Atsuhiro Takasu; Norio Katayama; Masaki Yamaoka; Osamu Iwaki; Keizo Oyama; Jun Adachi (ICPR, 1996)

Interactive Approach to the Extraction of Logical Structures from Unformatted Document Images Using a Sub-structure Model. - Masaki Yamaoka; Osamu Iwaki; Noboru Babaguchi; Tadahiro Kitahashi (ICDAR, 1999)