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Horn، Linda J.؛ Hui, John؛ Lane, Arthur L. (1990). "Observations of Neptunian rings by Voyager photopolarimeter experiment". Geophysics Research Letters. ج. 17 ع. 10: 1745–1748. Bibcode:1990GeoRL..17.1745H. DOI:10.1029/GL017i010p01745.
Smith، B. A.؛ Soderblom، L. A.؛ Banfield، D.؛ Barnet، C.؛ Basilevsky، A. T.؛ Beebe، R. F.؛ Bollinger، K.؛ Boyce، J. M.؛ Brahic، A. (1989). "Voyager 2 at Neptune: Imaging Science Results". Science. ج. 246 ع. 4936: 1422–1449. Bibcode:1989Sci...246.1422S. DOI:10.1126/science.246.4936.1422. PMID:17755997.
Colwell، Joshua E.؛ Esposito, Larry W. (1990). "A model of dust production in the Neptunian ring system". Geophysics Research Letters. ج. 17 ع. 10: 1741–1744. Bibcode:1990GeoRL..17.1741C. DOI:10.1029/GL017i010p01741.
Hansen، P. A. (1854). "Extract of a Letter respecting the Lunar Tables (Obituary of M. Arago)". Monthly Notices of the Royal Astronomical Society. ج. 14 ع. 4: 102–107. Bibcode:1853MNRAS..14....1H. DOI:10.1093/mnras/14.4.97.
"OBITUARY: List of Fellows and Associates deceased during the year: John Couch Adams". Monthly Notices of the Royal Astronomical Society. ج. 53 ع. 4: 184–209. 1893. Bibcode:1893MNRAS..53..184.. DOI:10.1093/mnras/53.4.184.