Performance Optimization of Tensor Contraction Expressions for Many-Body Methods in Quantum Chemistry - Hartono, Albert; Lu, Qingda; Henretty, Thomas; Krishnamoorthy, Sriram; Zhang, Huaijian; Baumgartner, Gerald; Bernholdt, David E; Nooijen, Marcel; Pitzer, Russell; Ramanujam, J; Sadayappan, P (The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 2009)