Photoabsorption resonances of Na 20, Na 21Cl and Na 22Cl 2 clustersC. Xia, C. Yin and V. V. KresinEur. Phys. J. D, 52 1-3 (2009) 183-185DOI: https://doi.org/10.1140/epjd/e2008-00269-9