UNITARY-GROUP BASED STATE-SELECTIVE COUPLED-CLUSTER METHOD - COMPARISON OF THE FIRST-ORDER INTERACTING SPACE AND THE FULL SINGLE AND DOUBLE-EXCITATION SPACE APPROXIMATIONS
Xz. Li et J. Paldus, UNITARY-GROUP BASED STATE-SELECTIVE COUPLED-CLUSTER METHOD - COMPARISON OF THE FIRST-ORDER INTERACTING SPACE AND THE FULL SINGLE AND DOUBLE-EXCITATION SPACE APPROXIMATIONS, The Journal of chemical physics, 102(22), 1995, pp. 8897-8905