The reaction np→ppπ- from threshold up to 570 MeV M. Daum, M. Finger, M. Finger Jr., J. Franz, F.H. Heinsius, A. Janata, K. Königsmann, H. Lacker, F. Lehar, H. Schmitt et al. (3 more) Eur. Phys. J. C, 52 1 (2007) 253 Published online: 11 August 2007 DOI: 10.1140/epjc/s10052-007-0385-5