Contains the keyword matrix renormalization-group

Bytautas L, Matsunaga N, Scuseria GE, Ruedenberg K. Accurate Potential Energy Curve for B-2. Ab Initio Elucidation of the Experimentally Elusive Ground State Rotation-Vibration Spectrum. J Phys Chem A. 2012;116:1717-29. Abstract

Bytautas L, Ruedenberg K. The Range of Electron Correlation between Localized Molecular Orbitals. A Full Configuration Interaction Analysis for the NCCN Molecule. Journal of Physical Chemistry A. 2010;114:8601-12. Abstract