Occultation detection of a Neptune ring segment Hubbard, W. B. ; Brahic, A. ; Bouchet, P. ; Elicer, L. -R. ; Haefner, R. ; Manfroid, J. ; Roques, F. ; Sicardy, B. ; Vilas, F. Abstract Publication: 16th Lunar and Planetary Science Conference Pub Date: 1985 Bibcode: 1985LPICo.559...35H