J T MacGregor-Morris and E Mallett 1923 Proc. Phys. Soc. London 36 139 doi:10.1088/1478-7814/36/1/316
J T MacGregor-Morris and E Mallett
43.38.Ja Loudspeakers and horns, practical sound sources
43.38.Si Telephones, earphones, sound power telephones, and intercommunication systems
Issue 1 ( 1 January 1923)
J T MacGregor-Morris and E Mallett 1923 Proc. Phys. Soc. London 36 139
Bartolo Luque et al 2005 J. Phys. A: Math. Gen. 38 1031
U. R. Fischer and M. Visser 2003 Europhys. Lett. 62 1
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