An ab initio theory of double odd-even mass differences in nuclei E. E. Saperstein, M. Baldo, N.V. Gnezdilov, U. Lombardo and S. S. Pankratov EPJ Web of Conferences, 38 (2012) 05002 Published online: 10 December 2012 DOI: 10.1051/epjconf/20123805002