1. A.A. Belushkina et al, in: “High Energy Physics with Polarized Beams and Polarized Targets,” Argonne 1978 (AIP Conf. Proc. No. 51), New York, 1979, p. 351.
2. A.A. Belushkina et al., in: “High Energy Physics with Polarized Beams and Polarized Targets,” Basle, 1981, p. 429.
3. N.G. Anishenko et al., in: “Proc. of the 5th Intern. Symp. on High Energy Spin Physics,” Brookhaven, 1982 (AIP Conf. Proc. No. 95), New York, 1983, p. 445.
4. N.G. Anishenko et al., in: “Proc. of the 6th Interna Symp. on High Energy Spin Physics,” Marseille, 1984 (J. de Phys., Colloque C2, Tome 46, 1985, p. C2–703 ).
5. V.A. Bartenev et al., in: “Advances in Cryogenic Engineering,” Vol. 18, Plenum, New York, 1973, p. 460.