550.3 I-69 International Union of Geodesy and Geophysics, General Assembly (XVI ; 1975 ; Grenoble). XVI General Assembly, Grenoble, 25 August - 6 September, 1975 : abstracts of Papers Presented at the Interdisciplinary Symposia / International Union of Geodesy and Geophysics. - Paris : Schiffer, 1975. - 320 p. - 15.74 р.
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