On the structure of quasi-Keplerian accretion discs surrounding millisecond X-ray pulsars by Isaac, Habumugisha, Solomon, B. Tessema, Edward, Jurua, Simon, K. Anguma

“…Results obtained reveal that PGF results into episodic torque reversals that contribute to spinning-up or spinning-down of a neutron star, mainly from the inner region. The possibility of a quasi-Keplerian disc is seen and these results can explain the observed spin variations in MSPs like SAX J1808.4-3658 and XTE J1814-338.…”
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