%0 Journal Article %A Knuth, Donald E. %T Aztec diamonds, checkerboard graphs, and spanning trees %J Journal of Algebraic Combinatorics %D 1997 %P 253-257 %V 6 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JAC_1997__6_3_a4/ %G en %F JAC_1997__6_3_a4