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D.A. Varshalovich S.A. Levshakov V.B. Nebelitsky 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》1984,3(10-12)
Absorption spectra of the quasar OH 471 (ze=3.40) and OQ 172 (ze=3.53) were observed with 2-Å resolution using the Image-Photon Counting System on the 6-m telescope of the USSR Academy of Sciences. An analysis of these spectra provides an information about the absorbing material existed at earlier cosmological epochs. 相似文献
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