Towards a field theoretic understanding of NN → NNπ V. Lensky, V. Baru, J. Haidenbauer, C. Hanhart, A. E. Kudryavtsev and U. -G. Meißner Eur. Phys. J. A, 27 1 (2006) 37-45 Published online: 21 February 2006 DOI: 10.1140/epja/i2006-10002-4