Concurrent LISP based on lexical scope. - S. Sugimoto; T. Sakaguchi; K. Tabata (COMPSAC, 1989)

On-Line Recognition of Mathematical Expressions Using Automatic Rewriting Method. - Toshihiro Kanahori; K. Tabata; W. Cong; Fumikazu Tamari; Masakazu Suzuki (ICMI, 2000)