Martin P.A ed, Ursell, F., Martin, P. A., & Wickham, G. R. (1992). Wave asymptotics: The proceedings of the meeting to mark the retirement of Professor Fritz Ursell from the Beyer Chair of Applied Mathematics in the University of Manchester. Cambridge University Press.

Martin P.A ed, Fritz Ursell, P. A. Martin, and G. R. Wickham. Wave Asymptotics: The Proceedings of the Meeting to Mark the Retirement of Professor Fritz Ursell from the Beyer Chair of Applied Mathematics in the University of Manchester. Cambridge [England] ; New York: Cambridge University Press, 1992.

Martin P.A ed, et al. Wave Asymptotics: The Proceedings of the Meeting to Mark the Retirement of Professor Fritz Ursell from the Beyer Chair of Applied Mathematics in the University of Manchester. Cambridge University Press, 1992.