INTERNAL FRICTION DUE TO dHCP-FCC TRANSFORMATION OF LANTHANUM PAN ZHENGLIANG, LI GUANGYI, WANG XIAOWEI et XIAO JINQUANJ. Phys. Colloques, 46 C10 (1985) C10-613-C10-616DOI: https://doi.org/10.1051/jphyscol:198510134