Nanocrystalline Ge films created by thermal vacuum deposition on GaAs substrates: structural and electric properties - V. L. Borblik; A. A. Korchevoi; A. S. Nikolenko; V. V. Strelchuk; A. M. Fonkich; Yu. M. Shwarts; M. M. Shwarts (Semiconductor Physics, Quantum Electronics and Optoelectronics, 2014)