TY - RPRT TI - Wavefunction stability analysis without analytical electronic Hessians: application to orbital-optimised second-order Møller–Plesset theory and VV10-containing density functionals AU - Sharada, Shaama Mallikarjun AU - Stück, David AU - Sundstrom, Eric J. AU - Bell, Alexis T. AU - Head-Gordon, Martin PY - 2015 DO - 10.1080/00268976.2015.1014442 UR - https://www.osti.gov/biblio/1571024 ID - 1571024 ER -