1. CRC Handbook of Lie Group Analysis of Differential Equations,1994
2. Symmetry analysis of wave equation on sphere;Azad;J. Math. Anal. Appl.,2007
3. O.L. Schoenborn, Phase ordering and kinetics on curved surfaces, Ph.D. Thesis, University of Toronto, Canada, 1998.
4. D. Stubbs, Symmetries and analytic structure of phase separation in curved geometries, Ph.D. Thesis, The University of Western Ontario, Canada, 2001.
5. The emergence of jets and vortices in freely evolving shallow-water turbulence on a sphere;Cho;Phys. Fluids,1995