McKellar A.,"Evidence for the Molecular Origin of Some Hitherto Unidentified Interstellar Lines," Pub. Astron. Soc. Pacific, Vol. 52, p.p. 187-192(1940)[1][2]
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WEINREB S., BARRETT A.H., MEEKS M.L., HENRY J.C., "Radio Observations of OH in the Interstellar Medium" Nature, Vol.200, p.p.829 - 831(1963)[3][4]
McKellar A.,"Evidence for the Molecular Origin of Some Hitherto Unidentified Interstellar Lines," Pub. Astron. Soc. Pacific, Vol. 52, p.p. 187-192(1940)[1][2]
WEINREB S., BARRETT A.H., MEEKS M.L., HENRY J.C., "Radio Observations of OH in the Interstellar Medium" Nature, Vol.200, p.p.829 - 831(1963)[3][4]