TY - JOUR AU - James Sims AU - Stanley Hagstrom C2 - Journal of Physics B-Atomic Molecular and Optical Physics DA - 2015-07-17 LA - en PB - Journal of Physics B-Atomic Molecular and Optical Physics PY - 2015 TI - Mathematical and computational science issues in high precision Hylleraas-configuration interaction variational calculations: III. Four-electron integrals ER -