Charge density wave phenomena in the family of two dimensional monophosphate tungsten bronzes : (PO2)4(WO3)2 m P. FOURY, J. P. POUGET, Z. S. TEWELDEMEDHIN, E. WANG, M. GREENBLATT et D. GROULTJ. Phys. IV France, 03 C2 (1993) C2-133-C2-136DOI: https://doi.org/10.1051/jp4:1993226