@book{ BB23728817, author = "Rayleigh, John William Strutt, Baron and Lindsay, Robert Bruce", title = "The theory of sound", publisher = "Dover Publications", year = "1945", edition = "2nd ed., rev. and enl., 1st American ed", series = "Dover books on physics and mathematical physics", number = "", URL = "https://ci.nii.ac.jp/ncid/BB23728817" }