Study of subsidence of leveling tripods on an asphalt surface

Authors:
1
Dnepropetrovsk Institute of Engineering Transportation and Road Transport

1. Lebedev N. I. Kurs inzhenernoj geodezii. — M.: Nedra, 1974. 
2. Jentin I. I. Vysokochastotnoe nivelirovanie. — Tr. CNIIGAiK, 1956, vyp. 111.