%0 Journal Article %A R. NorvaiĊĦa %T Chain rules and $p$-variation %J Studia Mathematica %D 2002 %P 197-238 %V 149 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm149-3-1/ %R 10.4064/sm149-3-1 %G fr %F 10_4064_sm149_3_1