1. Acoustic wave filters;Stewart;Physical Review,1922
2. Acoustic wave filters in series;Stewart;Review of the Science Institute,1924
3. Finite acoustic filters;Lindsay;Journal of the Acoustical Society of America,1937
4. The filtration of sound;Lindsay;Journal of the Acoustical Society of America,1938
5. Determination of natural frequencies of piping systems by an electrical analogy;Murphy,1948