The response function of a dislocation which interacted elastically with a single point defect, and with ones which were periodically or randomly distributed, was found by solving the equation for small oscillations of the dislocation.
Response Function of a Dislocation Interacting with Point Defects. I.L.Bataronov, V.V.Dezhin, A.M.Roshchupkin: Izvestiya Ross. Akad. Nauk – Ser. Fiz., 1995, 59[10], 60-4 (Bulletin of the Russian Academy of Sciences - Physics, 1995, 59[10], 1690-4)