1. J. R. Hill, L. Subramanian, and A. Maiti, Molecular Modeling Techniques in Materials Science (Taylor and Francis/CRC, Boca Raton, FL, 2005).
2. J. B. Foresman and A. E. Frisch, Exploring Chemistry with Electronic Structure Methods (Gaussian, Pittsburgh, PA, 1996).
3. N. Agarwal, S. Kumar, A. K. Srivastava, and K. P. C. Sarkar, Ind. J. Het. Chem. 6, 291 (1997).
4. R. C. Sup, R. Y. Sukp, and C. W. Bang, Korean J. Med. Chem. 5, 72 (1995).
5. S. I. Sumistov and Z. A. Bofoshko, USSR Patent No. 154861 (1964).