1. G. B. Kul'chitskii, "Soil thixotropy in the Middle Ob Region and its effect on pile foundation construction," Osn., Fundam. Mekh. Gruntov, No. 3, 19–20 (1975).
2. Recommendations for Determining the Bearing Capacity of Piles by Field Testing in Thixotropic Soils in the Tyumen Region [in Russian], NIIOSP, Tyumen (1976), 14 pp.
3. Recommendations for Driving Piles near Buildings, Structures, and Underground Pipelines [in Russian], NIIpromstroi, Ufa (1983).
4. SNiP 2.02.03-85, Pile Foundations [in Russian].
5. Pile Foundation Design Handbook [in Russian], NIIOSP, Stroiizdat, Moscow (1980).