1. S. V. Levin, Soil Mechanics [in Russian], "Nedra" (1964).
2. P. P. Smirenkin, Bases and Foundations [in Russian], Izd-vo Ministerstva Kommunal'nogo Khozyaistya RSFSR, (1956).
3. G. S. Bronshtein and V. U. Grechishkin, Laying-Out of Construction Reference Nets [in Russian], Geodezizdat (1960).
4. N. P. Belous, "Experience on reconditioning of drill holes under buried bench marks," Osnovaniya, Fundamenty i Mekhan. Gruntov, No. 5 (1966).
5. Instructions for the Preparation and Installation of Buried Bench Marks Intended for the Observation of Settlement of Buildings and Structures (U 127-55) [in Russian], Gosstroiizdat (1955).