THE CHANGE OF THE CONNECTIV1TY OF Bi ELECTRON FERMI SURFACE UNDER PRESSURE N. B. Brandt, V. V. Moshalkov et S. M. ChudinovJ. Phys. Colloques, 39 C6 (1978) C6-1106-C6-1107DOI: https://doi.org/10.1051/jphyscol:19786490