TY  - JOUR
T1  - Siren Harmonics and a Pure Tone Siren
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 98
IS  - 694
SP  - 414
EP  - 427
PY  - 1921/03/03/
UR  - http://dx.doi.org/10.1098/rspa.1921.0015
M3  - doi:10.1098/rspa.1921.0015
AU  - Milne, E.
AU  - Fowler, R.
ER  -