M. J. Frisch, M. Head-Gordon, and J. A. Pople, “Direct analytic SCF second derivatives and electric field properties,” Chem. Phys., 141 (1990) 189-96. DOI: 10.1016/0301-0104(90)87055-G
M. J. Frisch, M. Head-Gordon, and J. A. Pople, “Direct analytic SCF second derivatives and electric field properties,” Chem. Phys., 141 (1990) 189-96. DOI: 10.1016/0301-0104(90)87055-G
