Molecular physics of building blocks of life under isolated or defined conditions R. Weinkauf, J.-P. Schermann, M. S. de Vries and K. Kleinermanns Eur. Phys. J. D, 20 3 (2002) 309-316 Published online: 13 September 2002 DOI: 10.1140/epjd/e2002-00185-0