QUANTUM DIFFUSION IN SOLID HELIUM, DETECTION AND INVESTIGATION OF IMPURITON-PHONON MECHANISM OF SCATTERING B.N. Eselson, V.A. Mikheev, V.N. Grigoriev et N.P Mikhin J. Phys. Colloques, 39 C6 (1978) C6-119-C6-120 DOI: 10.1051/jphyscol:1978654