The 1S+1S asymptote of Sr2 studied by Fourier-transform spectroscopy A. Stein, H. Knöckel and E. Tiemann Eur. Phys. J. D, 57 2 (2010) 171-177 Published online: 09 March 2010 DOI: 10.1140/epjd/e2010-00058-y