TY - BOOK AU - Becker, Ulrich AU - Harvard Law School. Jean Monnet Program AU - New York University. School of Law TI - EU-enlargements and limits to amendments of the E.C. treaty PB - Harvard Law School. Jean Monnet Program PY - 2001 T2 - Jean Monnet working paper VL - 15/01 EP - 15 leaves UR - https://ci.nii.ac.jp/ncid/BA58192589 ER -