J. Almeida, Implicit operations on finite J-trivial semigroups and a conjecture of I. Simon, Journal of Pure and Applied Algebra, vol.69, issue.3, pp.205-218, 1990.
DOI : 10.1016/0022-4049(91)90019-X

J. Almeida, J. C. Costa, and M. Zeitoun, Factoriality and the Pin-Reutenauer procedure

J. Almeida, J. C. Costa, and M. Zeitoun, Tameness of Pseudovariety Joins Involving ${\sf R}$, Monatshefte f??r Mathematik, vol.4, issue.2, pp.89-111, 2005.
DOI : 10.1007/s00605-005-0324-1

J. Almeida, J. C. Costa, and M. Zeitoun, McCammond normal forms for free aperiodic semigroups revisited, 2012.

J. Almeida and B. Steinberg, On the Decidability of Iterated Semidirect Products with Applications to Complexity, Proceedings of the London Mathematical Society, vol.80, issue.1, pp.50-74, 2000.
DOI : 10.1112/S0024611500012144

J. Almeida and P. G. Trotter, The pseudoidentity problem and reducibility for completely regular semigroups, Bulletin of the Australian Mathematical Society, vol.56, issue.03, pp.407-433, 2001.
DOI : 10.1142/S0218196799000163

J. Almeida and M. Zeitoun, An automata-theoretic approach of the word problem for ?-terms over R, Theor, Comp. Sci, vol.370, pp.131-169, 2007.

J. C. Costa, Free profinite locally idempotent and locally commutative semigroups, Journal of Pure and Applied Algebra, vol.163, issue.1, pp.19-47, 2001.
DOI : 10.1016/S0022-4049(00)00176-6
URL : http://doi.org/10.1016/s0022-4049(00)00176-6

J. C. Costa, C. Nogueira, and M. L. Teixeira, Semigroup presentations for test local groups, Semigroup Forum, to appear

J. P. Duval, Factorizing words over an ordered alphabet, Journal of Algorithms, vol.4, issue.4, pp.363-381, 1983.
DOI : 10.1016/0196-6774(83)90017-2

M. Lothaire, Algebraic combinatorics on words, 2002.
DOI : 10.1017/CBO9781107326019
URL : https://hal.archives-ouvertes.fr/hal-00620608

J. P. Mccammond, NORMAL FORMS FOR FREE APERIODIC SEMIGROUPS, International Journal of Algebra and Computation, vol.11, issue.05, pp.581-625, 2001.
DOI : 10.1142/S0218196701000693