C.A. Coulson and I. Fischer (1949). “Notes on the Molecular Orbital Treatment of the Hydrogen Molecule”. Philos. Mag.40 (203): 386-393. doi:10.1080/14786444908521726.
S. Wilson and J. Gerratt (1975). “Calculation of potential energy curves for the ground state of the hydrogen molecule”. Molec. Phys.30 (3): 777-787. doi:10.1080/00268977500102331.
S. Wilson (2009). “On the Wave Function of Coulson and Fischer: A Third Way in Quantum Chemistry”. In P. Piecuch, J. Maruani, G. Delgado-Barrio and S. Wilson. Advances in the Theory of Atomic and Molecular Systems. Progress in Theoretical Chemistry and Physics 19. Springer. doi:10.1007/978-90-481-2596-8. ISBN978-90-481-2596-8
Weinbaum, Sidney (1933). “The Normal State of the Hydrogen Molecule”. J. Chem. Phys.1 (8): 593–596. doi:10.1063/1.1749333.