M. J. Frisch, M. Head-Gordon, and J. A. Pople, “Semi-direct algorithms for the MP2 energy and gradient,” Chem. Phys. Lett., 166 (1990) 281-89. DOI: 10.1016/0009-2614(90)80030-H
M. J. Frisch, M. Head-Gordon, and J. A. Pople, “Semi-direct algorithms for the MP2 energy and gradient,” Chem. Phys. Lett., 166 (1990) 281-89. DOI: 10.1016/0009-2614(90)80030-H
