%0 Journal Article %A L. J. Cowen %A Robert Cowen %A Arthur Steinberg %T Totally greedy coin sets and greedy obstructions %J The electronic journal of combinatorics %D 2008 %V 15 %U http://geodesic.mathdoc.fr/articles/10.37236/814/ %R 10.37236/814 %F 10_37236_814