1. Slater, J.C.: The theory of complex spectra. Phys. Rev. 34, 1293–1322 (1929)
2. Logergist: About the movement of moon. In: Butsuri no Sanpomichi No.5, Iwanami Shoten, Publishers, pp. 154–170(1972)(in Japanese)
3. Heitler, W., London, F.: Wechselwirkung neutraler Atome und homöopolare Bindung nach der Quantenmechanik. Z. Phys. 45, 455–472 (1927)
4. Fujinaga, S.: Molecular Orbital Method. Iwanami Shoten, Publishers (1980), 「Introduction to Molecular Orbital Method”, (1990), Kodansha Scientific, Publishers (in Japanese)
5. Hongo, Kenta, Kawazoe, Yoshiyuki, Yasuhara, Hiroshi: Diffusion monte carlo study of correlation in the hydrogen molecule. Int. J. Quantum Chem. 107(6), 1459–1467 (2007)