@book{ BA28792339, author = "Winter, Jan A. and T.M.C. Asser Instituut and Asser Instituut Colloquium Europees Recht", title = "Reforming the Treaty on European Union : the legal debate", publisher = "Kluwer Law International", year = "1996", URL = "https://ci.nii.ac.jp/ncid/BA28792339" }