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@article{SF_1996__53_2_135468, author = {T.G. Lavers}, title = {The monoid of ordered partitions of a natural number.}, journal = {Semigroup forum}, pages = {44--56}, publisher = {mathdoc}, volume = {53}, number = {2}, year = {1996}, zbl = {0852.20050}, url = {http://geodesic.mathdoc.fr/item/SF_1996__53_2_135468/} }
T.G. Lavers. The monoid of ordered partitions of a natural number.. Semigroup forum, Tome 53 (1996) no. 2, pp. 44-56. http://geodesic.mathdoc.fr/item/SF_1996__53_2_135468/