TY - JOUR AU - M. D. Atkinson TI - Permutations which are the union of an increasing and a decreasing subsequence JO - The electronic journal of combinatorics PY - 1998 VL - 5 UR - http://geodesic.mathdoc.fr/articles/10.37236/1344/ DO - 10.37236/1344 ID - 10_37236_1344 ER -