Identification of 13 Cepheids and 333 other variables in M 31 Y. C. Joshi, A. K. Pandey, D. Narasimha, R. Sagar and Y. Giraud-Héraud A&A, 402 1 (2003) 113-123 Published online: 07 April 2003 DOI: 10.1051/0004-6361:20030136