Oxford University Press on behalf of the Royal Astronomical Society (via email dated 31 July 2020):
Dear Prof. Joel Tohline,
RE. 1 figure, 2 equations: O. M. Blaes, Oscillations of slender tori, Monthly Notices of the Royal Astronomical Society 1985; 216 (3): 553–563, https://doi.org/10.1093/mnras/216.3.553
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Additional note from Emma Thornton: Please find formal permission grant [above] as I don't believe this would be covered by fair use.