@article{05721445,
title = {Enumeration of alternating sign matrices of even size (quasi-)Invariant under a quarter-turn rotation.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {17},
year = {2010},
zbl = {1215.05009},
language = {en},
url = {http://dml.mathdoc.fr/item/05721445}
}
Aval, Jean-Christophe; Duchon, Philippe. Enumeration of alternating sign matrices of even size (quasi-)Invariant under a quarter-turn rotation.. The Electronic Journal of Combinatorics [electronic only], Tome 17 (2010) . http://gdmltest.u-ga.fr/item/05721445/