TY JOUR TI Experience in the Use of Digital Levels and CREDO NIVELIR Software for Monitoring Engineering Structures KW Monitoring KW settlement control KW digital levels KW geodetic construction support KW leveling JO Proceedings of Petersburg Transport University AU Kanashin, N.V. AU Afonin, D.A. PY 2023 IS 20 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"