N.P. Milevsky, O.V. Trekhovitsky

B.M. Lebed - Dr.Sci (Eng.), professor, Chief Scientist of Ferrite Domen Co.
N.P. Milevsky - Ph.D. (Eng.), Chief Scientist of Ferrite Domen Co.
O.V. Trekhovitsky - Head of Laboratory at Ferrite Domen Co.

A. B. Guskov1, N. V. Mikhailov2, E. I. Starshinova3, A. E. Chalykh4, D. V. Chernikin5

1, 2 JSC “Plant Magneton” (Saint-Petersburg, Russia)

3–5 JSC “V. Tikhomirov Scientific Research Institute of Instrument Design” (Zhukovsky, Russia)