Petters, A. O. Curvature of caustics and singularities of gravitational lenses.
Trích dẫn kiểu ChicagoPetters, Arlie O. Curvature of Caustics and Singularities of Gravitational Lenses.
MLA CitationPetters, Arlie O. Curvature of Caustics and Singularities of Gravitational Lenses.
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