Digitalizing educational workbooks and collecting handwritten answers for automatic scoring. - Tomo Asakura; Hung Nguyen; Nghia Truong; Nam Tuan Ly; Cuong Tuan Nguyen; Hiroshi Miyazawa; Yoichi Tsuchida; Takahiro Yamamoto; Masamitsu Ito; Toshihiko Horie; Fumiko Yasuno; Tsunenori Ishioka; et al. (iTextbooks@AIED, 2023)