JINA - Virtual Journal of Nuclear Astrophysics, 12 November 2010
Volume 8, Issue 46 (34 Articles)
- # 14 - Old open clusters and the Galactic metallicity gradient: Berkeley 20, Berkeley 66, and Tombaugh 2
- arXiv.org - Astrophysics - Volume: 2010, Issue: 12 Nov
- arXiv:1011.2349 [pdf, ps, other]