@article{19553, author = "20. General Assembly IUGG, Vienna, August 11-24, 1991", title = "National Report on the Geodetic and Gravimetric Work done in India by Various Organisations and Institutions during the period 1987 - 90 with Emphasis on Geophysical Investigations and Scientific Studies under International Programmes ", year = "1991", note = "Liter. - Obr. a tab. v příl.", }