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@article{PDA_1976_6_a22, author = {B. Kilar}, title = {Present {State} of {Geodetic} {Astronomy}}, journal = {Publications of the Department of Astronomy}, pages = {127 }, publisher = {mathdoc}, volume = {6}, year = {1976}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PDA_1976_6_a22/} }
B. Kilar. Present State of Geodetic Astronomy. Publications of the Department of Astronomy, Tome 6 (1976), p. 127 . http://geodesic.mathdoc.fr/item/PDA_1976_6_a22/