Water emission from the chemically rich outflow L1157 M. Vasta, C. Codella, A. Lorenzani, G. Santangelo, B. Nisini, T. Giannini, M. Tafalla, R. Liseau, E. F. van Dishoeck and L. Kristensen A&A, 537 (2012) A98 Published online: 16 January 2012 DOI: 10.1051/0004-6361/201118201