@article{mullinax:2019:276, author = {Mullinax, J. Wayne and Epifanovsky, Evgeny and Gidofalvi, Gergely and DePrince, A. Eugene}, title = {Analytic Energy Gradients for Variational Two-Electron Reduced-Density Matrix Methods within the Density Fitting Approximation}, journal = {J. Chem. Theory Comput.}, volume = {15}, number = {1}, pages = {276-289}, year = {2019}, doi = {10.1021/acs.jctc.8b00973}, }