TY - JOUR AU - Teresa X.S. Li AU - Melissa Y.F. Miao TI - Invariant principal order ideals under Foata's transformation JO - The electronic journal of combinatorics PY - 2012 VL - 19 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.37236/2680/ DO - 10.37236/2680 ID - 10_37236_2680 ER -