The letter contains impressions on the previous WG 2.4 meeting (in Tokyo) and invites to actively participate in its next meeting (in Paris). There is attached a classification of papers presented at the Tokyo meeting. (Doc. "Munich-6".)

Covering letter for the Report of WG 2.4 to the St Pierre meeting of TC 2 and the responce to it, as well as this report itself. The latter includes the mailing list of the Group. (Doc. "St.Pierre-17".)