Agenda, correspondence and minutes of the Commission C meeting in Frankfurt on 11 – 12 May 1955. Relevant subjects: follow up and conclusion of the current observations programme, interpretation of the directives for the restitution workings, establishment of guidelines for further treatment of the results of observations and for the calculation of errors, discussion of eventual new study projects.
Report by the Italian delegation for the Commission C meeting in Frankfurt on 11–12/05/1955 and guidelines adopted at the Commission C meeting in Frankfurt on 11–12/05/1955, in date 25/05/1955
Minutes of the meeting of Commission C (together with B) in Delft, 18–19/04/1956, with technical reports. Relevant subjects: communication and discussion of the results of the Commission, elaboration of a project for the publication of a report by Commission C at the International Photogrammetric Society in Stockholm, discussion on the future activities of Commission C
Technical reports and minutes of the Meeting of Commission C in Frankfurt on 30/04/1957. Relevant subjects: report on the status of activities, master plan on errors examination, examination of errors, examination of systematic influence of errors, statistics on signals, comparison of the transforming coordinates in neighbor model, other examinations of errors, future activities; Tables and technical reports
Minutes of the Commission C meeting in Zurich on 18–19/11/1959. Relevant subjects: election of a new president, status of Oberriet experiment, other specific studies concerning Oberriet material, report on the new Reichenbach range, work programme of the Reichenbach range
Minutes of the Commission C meeting in Frankfurt on 25–26/10/1962. Relevant subjects: Oberriet range, Reichenbach range, delivery of documents for working group IV/1 of SIP, 28/10/1962
Minutes of the 5th meeting of Commission D in Delft 26–27/11/1969. Relevant subjects: report on the status of experiments at the Stuttgart range, discussion of the project of planche-echantillon for the topographic map 1/10000, discussion of the projects for the analysis of the restitution results.
Minutes of the meeting of Commission C in Frankfurt on 10–11/06/1970, in date 20/07/1970. Relevant subjects: report on current activities, future research programmes.
Minutes of the meeting of Commission C in Frankfurt on 2-3/12/1971, in date 12/01/1972. Relevant subjects: status of the Commission’s activities, Dodrecht experiment, Vienna experiment, additional experiments.
Minutes of the meeting of Commission C in Frankfurt on 25-26/05/1972, in date 26/07/1972. Relevant subjects: report on Commission activities, Vienna experiment, Dodrecht experiment, additional experiments by the Commission.
Minutes of the meeting of Commission C in Frankfurt on 4-5/07/1973, in date 31/08/1973. Relevant subjects: status of the Commission’s activities, report on Commission activities, Vienna experiment, Dodrecht experiment, additional experiments by the Commission.
Minutes of the meeting of Commission C in Frankfurt on 12-13/05/1975, in date 16/06/1975. Relevant subjects: status of the Commission’s activities, report on Commission activities, Vienna experiment, Dodrecht experiment, additional activities of the Commission.
Minutes of the meeting of Commission C in Frankfurt on 25-27/10/1976, in date 13/12/1976. Relevant subjects: status of the Commission’s activities, report on Commission activities, Dodrecht experiment, Vienna experiment, additional activities of the Commission.
Minutes of the meeting of Commission C in Vienna on 11-12/10/1978, in date 1/12/1978. Relevant subjects: report on the Commission’s activities, Vienna experiment, new structure of the OEEPE, future experiments by the Commission, Dodrecht experiment.
Minutes of the meeting of Commission C in Zurich on 21-22/05/1979, in date 13/07/1979. Relevant subjects: report on the Commission’s activities, Vienna experiment, new research programme of the Commission.

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