Pulsation of the K 2.5 giant star GSC 09137-03505? Th. Kallinger, K. Zwintz, A. A. Pamyatnykh, D. B. Guenther and W. W. Weiss A&A, 433 1 (2005) 267-273 Published online: 14 March 2005 DOI: 10.1051/0004-6361:20040519