Further requests the Secretary-General to submit a vening a meeting of the High Contracting Parties to the first progress report to the Security Council by the first said Convention to discuss possible measures that might week of March 1991 and to report every four months be taken by them under the Convention and, for this thereafter, and decides to remain seized of the matter as purpose, to invite the Parties to submit their views on how necessary. the idea could contribute to the goals of the Convention, as well as on other relevant matters, and to report thereon