1. A.N. Trukhin, A.R. Silin, I.K. Vitol, J.R. Zakis, Izvestia Akademii Nauk SSSR (Report of Sov. Academy of Science), 52, 1969, 911.
2. D.L. Griscom, 32nd Freq. Control Symp. Electr. Indust Assn., W-DC, 1979, 98.
3. A. Trukhin, A. Plaudis, 4th Conference on Radiation Phys. Chem. Ionic Crystals, University of Latvia, Rīga, 1978, 337.
4. Optically detected magnetic resonance studies of exciton trapping by germanium in quartz