Increased H2CO production in the outer disk around HD 163296M. T. Carney, M. R. Hogerheijde, R. A. Loomis, V. N. Salinas, K. I. Öberg, C. Qi and D. J. WilnerA&A, 605 (2017) A21DOI: https://doi.org/10.1051/0004-6361/201629342