Orlov, Y. A. K. a. Y. I. Caustics, catastrophes and wave fields. Springer.
Lua i Stíl Chicago (17ú heag.)Orlov, Yu. A. Kravtsov and Yu. I. Caustics, Catastrophes and Wave Fields. Springer.
Lua MLA (8ú heag.)Orlov, Yu. A. Kravtsov and Yu. I. Caustics, Catastrophes and Wave Fields. Springer.
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