Запорожець, О.І., and Д.Г. Бабейчук. “Application Cns Atm for Effective Methods of Reducing Aircraft Noise When the Aircraft before Boarding”. Proceedings of National Aviation University (archive), vol. 37, no. 4, Apr. 2008, pp. 82-88, doi:10.18372/2306-1472.37.1638.