Ishida01

M. Ishida, K. Toyota, M. Ehara, and H. Nakatsuji, “Analytical energy gradients of the excited, ionized and electron-attached states calculated by the SAC-CI general-R method,” Chem. Phys. Lett., 347 (2001) 493-98. DOI: 10.1016/S0009-2614(01)00995-2