V. Antoshchenko, O. Lavrishchev, and Y. Frantsev, “EVALUATION OF GaP SINGLE CRYSTALLINE MATRIX SUBSTRATES THICKNESS PREPARED BY SEPARATED GROWTH METHOD IN ЭTHE SYSTEM Sn- Ga / InP”, Rec.Contr.Phys., vol. 2008, no. 3, pp. 71–75, Nov. 2008.