The Electronic Journal of Combinatorics

v18i2p26 — Comment by the authors, Nov 16, 2011.

We have been informed that the bijection in Theorem 4 was independently noted by Jessica Striker and can be seen in Section 7 of her paper "A unifying poset perspective on alternating sign matrices, plane partitions, Catalan objects, tournaments, and tableaux", Advances in Applied Math. 46(1-4):583-609, 2011.