Variational Procedure for Open-Shell LCAO Multideterminant Wavefunctions. An Approach to the Excited-State Problem

New Developments in Molecular Orbital Theory

1951 • 5,347 citations

Self-Consistent Field Theory for Open Shells of Electronic Systems

1960 • 1,927 citations

Two by two rotations of orbitals for minimizing the energy of LCAO-MO wave functions

1966 • 15 citations