Complex organic molecules in protoplanetary disks Catherine Walsh, Tom. J. Millar, Hideko Nomura, Eric Herbst, Susanna Widicus Weaver, Yuri Aikawa, Jacob C. Laas and Anton I. Vasyunin A&A, 563 (2014) A33 Published online: 28 February 2014 DOI: 10.1051/0004-6361/201322446