Stress and displacement distributions in an elastic layer acted on by internal point forces: O. Ya. Shekhter and O.E. Prikhodchenko.Soil Mech. Fdn Engng, No. 5, 275–279, Sept./Oct. 1964 (Translation of Osnovaniya Fundamenty i Mekhanika Gruntov No. 5, 2–4, Sept./Oct. 1964 by Consultants Bureau, New York, N.Y.)