1. Exact and asymptotic representations of the sound field in a stratified ocean;Ahluwalia,1977
2. MACSYMA Reference Manual, Version Ten;Bogen,1984
3. Waves in Layered Media;Brekhovskikh,1980
4. Internal Operators in the Theory of Linear Partial Differential Equations;Bergman,1969
5. The Bergman-Gilbert operator as a transmutation;Carroll;G.R. Math. Rep. Acad. Sci. Canada,1982