Perlick, V. Ray optics, Fermat's principle, and applications to general relativity. Springer.
Style de citation Chicago (17e éd.)Perlick, Volker. Ray Optics, Fermat's Principle, and Applications to General Relativity. Berlin [etc.]: Springer.
Style de citation MLA (8e éd.)Perlick, Volker. Ray Optics, Fermat's Principle, and Applications to General Relativity. Springer.
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