1. M.J. Frisch, G.W. Trucks, H.B. Schlegel, G.E. Scuseria, M.A. Robb, J.R. Cheeseman, V.G. Zakrzewski, J.A. Montgomery, R.E. Stratmann, J.C. Burant, S. Dapprich, J.M. Millam, A.D. Daniels, K.N. Kudin, M.C. Strain, O. Farkas, J. Tomasi, V. Barone, M. Cossi, R. Cammi, B. Mennucci, C. Pomelli, C. Adamo, S. Clifford, J. Ochterski, G.A. Petersson, P.Y. Ayala, Q. Cui, K. Morokuma, D.K. Malick, A.D. Rabuck, K. Raghavachari, J.B. Foresman, J. Cioslowski, J.V. Ortiz, B.B. Stefanov, G. Liu, A. Liashenko, P. Piskorz, I. Komaromi, R. Gomperts, R.L. Martin, D.J. Fox, T. Keith, M.A. Al-Laham, C.Y. Peng, A. Nanayakkara, C. Gonzalez, M. Challacombe, P.M.W. Gill, B.G. Johnson, W. Chen, M.W. Wong, J.L. Andres, M. Head-Gordon, E.S. Replogle, J.A. Pople, Gaussian 98 (Revision A.7), Gaussian, Inc., Pittsburgh PA, 1998.
2. A new mixing of Hartree–Fock and local density-functional theories;Becke;J. Chem. Phys.,1993
3. Development of the Colle–Selvetti correlation—energy formula into a functional of the electron density;Lee;Phys. Rev. B,1988
4. I. Natkaniec, S.I. Bragin, J. Brankowski, J. Mayer, in: Proceedings of the ICANS XII Meeting, Abington 1993, RAL Report 94-025, Vol. I, 1994, p. 89.
5. The dipolar broadening of magnetic resonance lines in crystals;van Vleck;Phys. Rev.,1948