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2. G. Gavrilov, A. Krivchitch, V. Lebedev, V. Smolin, Investigation of the anode wire surface films by nuclear-physical methods, preprint PNPI-1998, No. 2227, p. 15.
3. The effect of oxygen on anode wire swelling under high accumulated radiation dose
4. G. Gavrilov, A. Krivchitch, E. Kuznetsova, E. Lobachev, L. Schipunov, Aging properties of the straw drift-tubes operating with gas mixture containing C2H2F4, preprint PNPI-2001, No. 2407, p. 31.