Katsunori Ohta
Professor, Faculty of Informatics, Kansai University
Adress: 2-1-1 Ryozenji-cho, Takatsuki, Osaka 569-1095, Japan.
E-mail: ohta<at>kansai-u.ac.jp
Professor, Faculty of Informatics, Kansai University
Adress: 2-1-1 Ryozenji-cho, Takatsuki, Osaka 569-1095, Japan.
E-mail: ohta<at>kansai-u.ac.jp