1. V. E. Karasev, A. G. Mirochnik, and E. V. Fedorenko, Photophysics and Photochemistry of Boron Difluoride β-Diketonates (Dal’nauka, Vladivostok, 2006) [in Russian].
2. P. Czerney, G. Haucke, and C. Igney, Ger (East) DD/265266 (1987), CA. 112(45278) (1990).
3. M. Halik, G. Schmid, and L. Davis, German Patent No. 10152938, CA. 123(378622) (2003).
4. A. Hunze, A. Kanitz, H. Hartmahh, and D. Rohde, WO 02/065600, CA. 137(187010) (2003).
5. J. M. Halm, US Patent No. 4123268, IPC 96/1PC, G03/G5/09 (October 31, 1979).