1. The parabolic approximation method;Tappert,1977
2. A finite element method for the parabolic wave equation;Gilbert,1982
3. Recent progress in modelling bottom interacting sound propagation with parabolic equations;Lee,1982
4. Application of the parabolic equation to sound propagation in a refracting atmosphere;Gilbert;J. Acoust. Soc. Amer.,1989
5. Application of the parabolic equation to sound propagation in a refractive atmosphere;White,1988