The thermal expansion of 2H-MoS2, 2H-MoSe2 and 2H-WSe2 between 20 and 800°C
  J. Appl. Cryst. (1976). 9, 403-406    [ doi:10.1107/S0021889876011709 ]
     S. H. El-Mahalawy and B. L. Evans