%0 Journal Article %A Jerrold Griggs %A Charles E. Killian %A Carla D. Savage %T Venn diagrams and symmetric chain decompositions in the Boolean lattice %J The electronic journal of combinatorics %D 2004 %V 11 %N 1 %U http://geodesic.mathdoc.fr/articles/10.37236/1755/ %R 10.37236/1755 %F 10_37236_1755