On the ranks of certain finite semigroups of order-decreasing transformations.
Umar, Abdullahi
Portugaliae Mathematica. Nova Série, Tome 53 (1996), p. 23-34 / Harvested from The Electronic Library of Mathematics
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Publié le : 1996-01-01
EUDML-ID : urn:eudml:doc:47476 
@article{00874390,
     title = {On the ranks of certain finite semigroups of order-decreasing transformations.},
     journal = {Portugaliae Mathematica. Nova S\'erie},
     volume = {53},
     year = {1996},
     pages = {23-34},
     zbl = {0844.20050},
     language = {en},
     url = {http://dml.mathdoc.fr/item/00874390}
}

Umar, Abdullahi. On the ranks of certain finite semigroups of order-decreasing transformations.. Portugaliae Mathematica. Nova Série, Tome 53 (1996) pp. 23-34. http://gdmltest.u-ga.fr/item/00874390/