IMPURITY INTERACTION ANISOTROPY AND QUANTUM DIFFUSION OF 3He IN SOLID 4He V.A. Slusarev, M.A. Strzhemechny et I.A.Burakhovich J. Phys. Colloques, 39 C6 (1978) C6-117-C6-118 DOI: 10.1051/jphyscol:1978653