[1] J. J. Stoker, 1957: Water Waves. Interscience Publishers, New York. MR 0103672

[2] P. D. Lax, B. Wendroff, 1962: Difference schemes with high order of accuracy for solving hyperbolic equations. AEC Computing and Applied Mathematics Center, Courant Institute of Mathematical Sciences, New York University.

[3] A. Kasahara E. Isaacson J. J. Stoker, 1964: Numerical Studies of Frontal Motion in the Atmosphere - I. Report to be issued by Courant Institute of Mathematical Sciences, New York University.