[1] An authoritative discussion of horn loudspeakers is found in H, F Olson.
Elements of acoustical engineering
. 2nd ed. New York: D. Van Nostrand Company, Inc.; 1947 [Chap. VII].
[2] Geddes E.R, Lee L.W.
Audio transducers
. Michigan: GedLee; 2002:126–163.
[3] Freehafer J.E. The acoustical impedance of an infinite hyperbolic horn.
J Acoust Soc Am
. 1940;11:467–476.
[4] Abramowitz M, Stegun I.A.
Handbook of mathematical functions
. New York: Dover; 1964:721–769.
[5] Salmon V. Generalized plane wave horn theory.
J Acoust Soc Am
. 1946;17(3):199–211.
[6] Martin P.A. On Webster's horn equation and some generalizations.
J Acoust Soc Am
. 2004;116(3):1381–1388.
[7] Hélie T. Unidimensional models of acoustic propagation in axisymmetric ...