1. O. P. Minaev and O. A. Savinov, ?Prospects of using heavy double-mass tampers for compacting soils,? Osn., Fundam. Mekh. Gruntov, No. 4 (1990).
2. Recommendations on Compacting Poorly Cohesive Saturated Soils by Blasts [in Russian], VNIIG im. B. E. Vedeneeva, Leningrad (1979).