Пожалуйста, помогите со статейкой:
Benade, A. H.; Jansson, E. V., On Plane and Spherical Waves in Horns with Nonunif orm Flare: I. Theory of Radiation, Resonance Frequencies, and Mode Conversion, Acta Acustica united with Acustic 31No. 2 (1974), pp. 79-98.
Код: Выделить всё
http://www.ingentaconnect.com/content/dav/aaua/1974/00000031/00000002/art00004?crawler=true