Oleksandr Zaporozhets Author & Editor

Oleksandr Zaporozhets and Vadim Tokarev are Professors at the National Aviation University of the Ukraine. They were awarded a silver medal for achieving success in the development of a national economy of the USSR in 1987.

Keith Attenborough is Research Professor in Acoustics at the Open University, Education Manager of the (UK) Institute of Acoustics, and former Editor-in-Chief of Applied Acoustics. In 1996 he received the Rayleigh gold medal from the Institute of Acoustics and is an Honorary Fellow of the Institute of Acoustics and a Fellow of the Acoustical Society of America.