The energy resolution improvement by the method of reduction in photonuclear experiments / N.G.Efimkin,B.S.Ishkhanov,Ju.P.Pyt'ev,V.V.Varlamov, 1991. - 17 p. - Текст : непосредственный.
The analysis and evaluation by the method of reduction of total photoneutron reaction cross sections in the range of giant dipole resonance / V.V.Varlamov,N.G.Efimkin,B.S.Ishkhanov и др., 1993. - 35 p. - Текст : непосредственный.
The investigation of the reasons for discrepancies in results of photonuclear experiments at the beams of bremsstrahlung and quasimonoenergetic gamma-quanta. The problem of interpretation / V.V.Varlamov,N.B.Efimkin, M.A.Lenskaja,A.P.Chernjaev, 1989. - 48 p. - Текст : непосредственный.