1. ^{{cite book| url = https://archive.org/details/underwaterexplos00cole| author = R. H Cole | title = Underwater explosions| publisher = Princeton University Press|place= Princeton| year = 1948}}
2. ^{{cite book| url = https://archive.org/details/underwaterexplos00cole| author = G. K. Batchelor| title = An introduction to fluid mechanics| publisher = Cambridge University Press| place= Cambridge| year = 1974| isbn = 0521663962}}
3. ^{{cite book| url = https://archive.org/details/supersonicflowsh00cour| author = R. Courant| title = Supersonic flow and shock waves a manual on the mathematical theory of non-linear wave motion| publisher = Courant Institute of Mathematical Sciences, New York University| place= New York| year = 1944}}