1. B. Ya. Pines and I. G. Ivanov, ?Vacuum apparatus for measuring the creep rate and time-to-rupture of metals and alloys under load at temperatures of up to 1200°C,? in: New Machines and Instruments for Testing of Metals [in Russian], Metallurgizdat, Moscow (1963), pp. 3?6.
2. I. G. Ivanov and E. Z. Ryabinina, ?Application of a twin induction-differential displacement gauge in investigating creep,? Zavod. Lab., No. 11, 1411?1412 (1972).
3. B. Ya. Pines and I. G. Ivanov, ?Mechanical aftereffect and creep of metals,? Fiz. Tverd. Tela,11, No. 8, 2208?2212 (1969).
4. I. A. Gindin, E. A. Levikov, L. V. Levikova, et al., ?Low-temperature rolling and annealing of niobium single crystals,? Fiz. Met. Metalloved.,30, No. 2, 426?431 (1970).