Takeshi Shimmura, Syuichi Oura. Digital Ordering Improves Labor Productivity in Multiproduct Restaurants. In Alexandre Dolgui, Alain Bernard, David Lemoine, Gregor von Cieminski, David Romero, editors, Advances in Production Management Systems. Artificial Intelligence for Sustainable and Resilient Production Systems - IFIP WG 5.7 International Conference, APMS 2021, Nantes, France, September 5-9, 2021, Proceedings, Part III. Volume 632 of IFIP Advances in Information and Communication Technology, pages 198-205, Springer, 2021. [doi]