Measurement of total M shell photoionization cross sections for Au, Pb, Th and U in the energy region 6–12 keVK. S. Mann, K. S. Kahlon, N. Singh and K. L. AllawadhiEur. Phys. J. D, 41 3 (2007) 455-456DOI: https://doi.org/10.1140/epjd/e2006-00268-x