Маҳсулотлар
Ишлаб чиқувчилар учун
2 та иш
Physicotechnical Institute of Cryogenics AS UkrSSR, Khar'kov
V.A. Koval, І. В. Карпенко
V.A. Koval, V. P. Soldatov, V. I. Startsev