TY - JOUR AU - R. Porter AU - L. Raff BT - The Journal of Chemical Physics DA - Jan-01-1969 DO - 10.1063/1.1671037 PY - 1969 EP - 5216 T2 - The Journal of Chemical Physics TI - Configuration Interaction in the Simple Valence-Bond Wavefunction for the Potential-Energy Surfaces of Sigma-Bonded Four-Center Exchange-Reaction Complexes UR - http://link.aip.org/link/?JCP/50/5216/1\&Agg=doi VL - 50 SN - 00219606 ER -