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The results of the inspection of flood height marks of the river Niva and offers on the optimization of I class geodetic works in St.Petersburg regionBogdanov V.I., Bykova E.A., Golubev V.M., Kolotilin R.A., Malova T.I., Matveev A.Yu., Medvedev M.Yu., Osankin A.N. |
18-25 |