Saviane, I.; Held, E. V.; Piotto, G. (November 1996). "CCD photometry of the Tucana dwarf galaxy". Astronomy and Astrophysics. 315: 40–51. arXiv:astro-ph/9601165. Bibcode:1996A&A...315...40S.
Saviane, I.; Held, E. V.; Piotto, G. (November 1996). "CCD photometry of the Tucana dwarf galaxy". Astronomy and Astrophysics. 315: 40–51. arXiv:astro-ph/9601165. Bibcode:1996A&A...315...40S.