%0 Journal Article %A Pietro Donatini %A Patrizio Frosini %T Natural pseudodistances between closed surfaces %J Journal of the European Mathematical Society %D 2007 %P 331-353 %V 9 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/jems/82/ %R 10.4171/jems/82 %F JEMS_2007_9_2_a5