A Study on Integrated Production Management for Engineer-to-Order Production: An Integer Programming Formulation for Flexible Medium-Term Production Planning. - Koji Iwamura; Eiji Morinaga; Kengo Minami; Yoshiyuki Hirahara; Masamitsu Fukuda; Ayumu Niinuma; Hirotomo Oshima; Sumire Nishijima; Yasuo Namioka (APMS (6), 2025)