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Izvestiya VUZ. Radiofizika, Vol. 10, No. 9-10, pp. 1283–1304, 1967
Reported from the program of the Fourth All-Union Symposium on Wave Diffraction, Khar'kov, 1967.
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Kravtsov, Y.A. Complex rays and complex caustics. Radiophys Quantum Electron 10, 719–730 (1967). https://doi.org/10.1007/BF01031601
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DOI: https://doi.org/10.1007/BF01031601