1Rogério Custodio,Yuji Takahata. A modification of Koopmans’ theorem by imposition of the virial theorem in molecules[J] 1987,Theoretica Chimica Acta(3):197～205
2Yoram Tal,Jacob Katriel. Bonding criteria for diatomic molecular orbitals and inter-relations among them[J] 1977,Theoretica Chimica Acta(3):173～181
