Knecht, S.; Hedegård, E. D.; Keller, S.; Kovyrshin, A.; Ma, Y.; Muolo, A.; Stein, C. J.; Reiher, M. New Approaches for Ab Initio Calculations of Molecules With Strong Electron Correlation. Chimia 2016, 70 (4), 244. https://doi.org/10.2533/chimia.2016.244.