%0 Journal Article %A Acquistapace, F. %A Broglia, F. %A Fortuna, E. %T When is a Distribution of Signs Locally Completable? %J Canadian journal of mathematics %D 1994 %P 449-473 %V 46 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1994-024-2/ %R 10.4153/CJM-1994-024-2 %F 10_4153_CJM_1994_024_2