Resonance enhanced multiphoton ionization (REMPI) and REMPI-photoelectron spectroscopy of ammonia M. N.R. Ashfold, S. R. Langford, R. A. Morgan, A. J. Orr-Ewing, C. M. Western, C. R. Scheper and C. A. de Lange Eur. Phys. J. D, 4 2 (1998) 189-197 Published online: 15 November 1998 DOI: 10.1007/s100530050199