@article{JAC_2008__27_4_a0,
     author = {Ciucu, Mihai},
     title = {Symmetry classes of spanning trees of aztec diamonds and perfect matchings of odd squares with a unit hole},
     journal = {Journal of Algebraic Combinatorics},
     pages = {493--538},
     publisher = {mathdoc},
     volume = {27},
     number = {4},
     year = {2008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2008__27_4_a0/}
}