By Giraldes E.   in Communications in Algebra

ISSN:0092-7872|35|8|2552-2567

Taylor & Francis Ltd‎(2007)‎

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By Billhardt B.   Giraldes E.   Marques-Smith P.   Mendes Martins P.   in Semigroup Forum

ISSN:0037-1912|87|3|639-652

Springer Publishing Company ‎(2013)‎

Access to resources Favorite 8.1748705