Psi4 References

S. Grimme, S. Ehrlich, and L. Goerigk
Effect of the Damping Function in Dispersion Corrected Density Functional Theory,
Journal of Computational Chemistry, Vol. 32, pp. 1456-1465, 2011.
J. Turney, et al.
Psi4: An Open-Source ab initio Electronic Structure Program,
WIREs Computational Molecular Science, Vol. 2, pp. 556-565, 2012.
R. Parrish, et al.
Psi4 1.1: An Open-Source Electronic Structure Program Emphasizing Automation, Advanced Libraries, and Interoperability,
Journal of Chemical Theory and Computation, Vol. 13 pp. 3185-3197, 2017.