1. Vermiculite (Production and Use): Symposium. UralNIIstrom-proekt, Chelyabinsk (1988).
2. A. I. Nizhegorodov, Technology and Equipment for Processing Vermiculite: Optimum Size Grading, Electric Firing, and Additional Beneficiation, Izd-vo IrGTU, Irkutsk (2011).
3. Russian Federation Patent No. 47082, MPK7 F 27 B 15/00. Production Complex and Furnace for Firing Vermiculite, A. I. Nizhegorodov and A. I. Zalogov, Patent Applicant and Patent Holder A. I. Nizhegorodov, No. 2005108234, Sub. 23.03.05, Publ. 10.08.05, Byul. No. 22.
4. Russian Federation Patent No. 85993, MPK F 27 B 15/00, Furnace for Firing Vermiculite, A. I. Nizhegorodov, Patent Applicant and Patent Holder GOU IrGTU, No. 2009114125. Sub. 14.04.09, Publ. 20.08.09, Byul. No. 23.
5. Production and Use of Vermiculite [in Russian] (Ed.: N. A. Popov). Stroiizdat, Moscow (1964).