%0 Journal Article %A Campi, Stefano %A Gronchi, Paolo %T On Projection Bodies of Order One %J Canadian mathematical bulletin %D 2009 %P 349-360 %V 52 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2009-038-6/ %R 10.4153/CMB-2009-038-6 %F 10_4153_CMB_2009_038_6