Reference Label	Details
Parthiban 2001	S. Parthiban and J. M. L. Martin, J. Chem. Phys. 114, 6014-6029 (2001) Assessment of W1 and W2 Theories for the Computation of Electron Affinities, Ionization Potentials, Heats of Formation, and Proton Affinities
Parthiban 2002	S. Parthiban, J. M. L. Martin, and J. F. Liebman, Mol. Phys. 100, 453 (2002)