%0 Journal Article %A Lang, William E. %T Two theorems on de Rham cohomology %J Compositio Mathematica %D 1980 %P 417-423 %V 40 %N 3 %I Sijthoff et Noordhoff International Publishers %U http://www.numdam.org/item/CM_1980__40_3_417_0/ %G en %F CM_1980__40_3_417_0