TY JOUR TI About determination of coefficient of rigidity of the soil KW soil KW stiffness KW coefficient JO Actual directions of scientific researches of the XXI century: theory and practice AU Rodionov, A.. AU Tsypuk, A.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov