%0 Journal Article %A Jaak Peetre %T Two observations on a theorem by Coifman %J Studia Mathematica %D 1979 %P 191-194 %V 64 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-64-3-191-194/ %R 10.4064/sm-64-3-191-194 %G en %F 10_4064_sm_64_3_191_194