Photodissociation of organic molecules in star-forming regions - III. Methanol S. Pilling, R. Neves, A. C. F. Santos and H. M. Boechat-Roberty A&A, 464 1 (2007) 393-398 Published online: 19 December 2006 DOI: 10.1051/0004-6361:20066275