%0 Journal Article %A Franchi, Bruno %A Serapioni, Raul %A Cassano, Francesco Serra %T Rectifiability and perimeter in step 2 Groups %J Mathematica Bohemica %D 2002 %P 219-228 %V 127 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.2002.134175/ %R 10.21136/MB.2002.134175 %G en %F 10_21136_MB_2002_134175