%0 Journal Article %A Jaume Martí-Farré %A Carles Padró %T Secret sharing schemes on sparse homogeneous access structures with rank three %J The electronic journal of combinatorics %D 2004 %V 11 %N 1 %U http://geodesic.mathdoc.fr/articles/10.37236/1825/ %R 10.37236/1825 %F 10_37236_1825