J. J. P. Stewart, “Optimization of parameters for semiempirical methods. V. Modification of NDDO approximations and application to 70 elements,” J. Mol. Model., 13 (2007) 1173-213. DOI: 10.1007/s00894-007-0233-4
J. J. P. Stewart, “Optimization of parameters for semiempirical methods. V. Modification of NDDO approximations and application to 70 elements,” J. Mol. Model., 13 (2007) 1173-213. DOI: 10.1007/s00894-007-0233-4
