著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Jean-Pierre Dubé,Multiple Discreteness and Product Differentiation: Demand for Carbonated Soft Drinks,Marketing Science,0732-2399,Institute for Operations Research and the Management Sciences (INFORMS),2004-02,23,1,66-81,https://cir.nii.ac.jp/crid/1360011143973608960,https://doi.org/10.1287/mksc.1030.0041