TY - GEN AU - Twum-Barima , Rosalind AU - Campbell , Laura B. TI - Protecting the Ozone Layer through trade measures: reconciling the trade provivions of the montreal protocol and the rules of the GATT SN - 10201610 U1 - 333.7 PY - 1994/// CY - Geneva PB - United Nations Environment Programme KW - ENVIRONMENT IMPACT-STUDY ER -