Class transitions and two component accretion flow in GRS 1915+105 S. K. Chakrabarti, A. Nandi, A. K. Chatterjee, A. K. Choudhury and U. Chatterjee A&A, 431 3 (2005) 825-830 Published online: 16 February 2005 DOI: 10.1051/0004-6361:20041662