1. A. A. Grib, Problem of Noninvariant Vacuum in Quantum Field Theory (Atomizdat, Moscow, 1978) [in Russian].
2. A. A. Grib and S. G. Mamayev, On field theory in Friedmann space, Yadernaya Fizika 10, 1276 (1969) [Sov. J. Nucl. Phys. (USA) 10, 722 (1970)].
3. A. A. Grib, S. G. Mamayev, and V.M. Mostepanenko, Quantum Effects in Intensive External Fields (Atomizdat, Moscow, 1980) [in Russian].
4. A. A. Grib, S.G. Mamayev, and V.M. Mostepanenko, Vacuum Quantum Effects in Strong Fields (Energoatomizdat, Moscow, 1988; Friedmann Lab. Publ., St. Petersburg, 1994).
5. A. A. Grib, Early Expanding Universe and Elementary Particles (Friedmann Lab. Publ., St. Petersburg, 1995).