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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 45, No. 3, pp. 429–433, September, 1986.
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Ten, G.N., Kovalev, I.F., Bazov, V.P. et al. Spectral-luminescent properties of certain pyrylium and thiopyrylium salts. J Appl Spectrosc 45, 949–953 (1986). https://doi.org/10.1007/BF00663518
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DOI: https://doi.org/10.1007/BF00663518