Permutations which are the union of an increasing and a decreasing subsequence.
Atkinson, M.D.
The Electronic Journal of Combinatorics [electronic only], Tome 5 (1998), / Harvested from The Electronic Library of Mathematics
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Publié le : 1998-01-01
EUDML-ID : urn:eudml:doc:119235 
@article{01119071,
     title = {Permutations which are the union of an increasing and a decreasing subsequence.},
     journal = {The Electronic Journal of Combinatorics [electronic only]},
     volume = {5},
     year = {1998},
     zbl = {0885.05011},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01119071}
}

Atkinson, M.D. Permutations which are the union of an increasing and a decreasing subsequence.. The Electronic Journal of Combinatorics [electronic only], Tome 5 (1998) . http://gdmltest.u-ga.fr/item/01119071/