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90. Reynolds, P.J., R.N. Barnett, B.L. Hammond, R.M. Grimes, and W.A. Lester, Jr., “Quantum Chemistry by Quantum Monte Carlo Beyond Ground-State Energy Calculations,” International Journal of Quantum Chemistry 29, (1986): 589-596., 1985-1987, Box: 53, Folder: 11. William A. Lester, Jr. Papers, 2023-017. Science History Institute Archives. https://sciencehistory.libraryhost.com/repositories/3/archival_objects/53506 Accessed November 05, 2024.