Correspondence, draft agenda and minutes of the special meeting of the Steering Committee in Brussels on 31/01/1969. Relevant subject: project of Commission A and its realization.
Correspondence, draft agenda and minutes of the 35th meeting of the Steering Committee in Liege, from 24 to 25/04/1969. Relevant subjects: activities of the scientific Commissions, publications, Ackermann letter on the Steering Committee powers, membership fees, elections of the President. Annexes: report of the German Delegation.
Draft agenda and minutes of the 36th meeting of the Steering Committee in Delft from 23 to 24/10/1969. Relevant subjects: publications, activities and new members of the Commissions. Annexes: report on triangulation par couples independents, factsheet on a measurement project, report of Commission C, speech by the president in honour of Prof Schermerhorn, report of the German Delegation, activity reports of Commission A/B,C,D,E,F

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