%0 Journal Article %A N. Calkin %A C. Merino %A S. Noble %A M. Noy %T Improved bounds for the number of forests and acyclic orientations in the square lattice %J The electronic journal of combinatorics %D 2003 %V 10 %U http://geodesic.mathdoc.fr/articles/10.37236/1697/ %R 10.37236/1697 %F 10_37236_1697