%0 Journal Article %T Multi-reference averaged quadratic coupled-cluster method: a size-extensive modification of multi-reference CI %A Szalay, Péter G. %A Bartlett, Rodney J. %A , %J Chemical Physics Letters %V 214 %N 5 %P 481-488 %@ 0009-2614 %D 1993-11-01 %I Elsevier BV %~ DeepDyve