- M. Kocik, J. Mizeraczyk, R. Barbucha, R. Queitsch, A. Emmel, N. Sabotinov, I. Kostadinov,
Comparison of New Generation Lasers: MOPA CuBr Laser and Nd:YAG Laser Used for Precision Processing of the Materials,
13th International School on Quantum Electronics: "Laser physics and applications", Burgas, Bulgaria, 2004, p.29