- Separation of Variables for Riemannian Spaces of Constant Curvature (Pitman Monographs and Surveys in Pure and Applied Math, No 28) by Ernest G. Kalnins, December, 1986
- Separation of Variables for Riemannian Spaces of Constant Curvature (Pitman Monographs and Surveys in Pure and Applied Math, No 28) by Ernest G. Kalnins, December, 1986
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