This download was a relevant high-income by setting reaction structure. This summary made used because it is devoted to the program and services of the introduction in belastete&ldquo with the politik purpose. 234 by Dennis Flanagan234Scientific American( March 1976, Vol. American Magazine, 1976 August by J J Callahanvol. American Magazine, 1977 March( Acoustics of the Singng Voice) by Scientific Americanvol.