Mahsulotlar
Ishlab chiquvchilar uchun
2 ta ish
Ish: On the attenuation of sound in liquid helium
V. N. Grigor’ev, N. E. Dyumin, L. S. Dikina +1
V. К. Chagovets, É. Ya. Rudavskiı̆, V. A. Goncharov