Triazene Proton Affinities: A Comparison between Density Functional, Hartree-Fock, and Post-Hartree-Fock Methods. - Ann M. Schmiedekamp; Igor A. Topol; Stanley K. Burt; Holy Razafinjanahary; Henry Chemette; Timothy Pfalzgraff; Christopher J. Michejda (J. Comput. Chem., 1994)