%0 Journal Article %A Aguiar, M. %A Castro, S. %A Labouriau, I. %T Path formulation for a modal family. %J Portugaliae mathematica %D 2001 %P 407-424 %V 58 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_2001__58_4_50514/ %G en %F PORMA_2001__58_4_50514