1. A.A. Grib, S.G. Mamaev, V.M. Mostepanenko, Quantum Effects in Intensive External Fields (Atomizdat, Moscow, 1980). (In Russian)
2. A.A. Grib, S.G. Mamaev, V.M. Mostepanenko, Vacuum Quantum Effects in Str Fields (Friedmann Lab. Publ., St. Petersburg, 1994. (Modified translation to English)
3. N.D. Birell, P.C.W. Davies, Quantum Fields in Curved Space (Cambridge University Press, Cambridge, 1982)
4. I.L. Buchbinder, S.D. Odintsov, I.L. Shapiro, Effective Action in Quantum Gravity (IOP Publishing, Bristol, 1992)
5. L. Parker, D. Toms, Quantum Field Theory in Curved Spacetime: Quantized Fields and Gravity (Cambridge Univ. Press, Cambridge, 2009)