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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 2, pp. 181–185, March–April, 1984.
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Golub, V.V., Grin', Y.I., Isakov, S.N. et al. Investigation of the populations of laser levels (00 °1–10 °0) in an unsteady supersonic N2O jet. Fluid Dyn 19, 330–335 (1984). https://doi.org/10.1007/BF01091263
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DOI: https://doi.org/10.1007/BF01091263