By Modoi George   in Semigroup Forum

ISSN:0037-1912|81|3|510-523

Springer Publishing Company ‎(2010)‎

Access to resources Favorite 20.055386

By Modoi George Ciprian   in Communications in Algebra

ISSN:0092-7872|38|3|995-1011

Taylor & Francis Ltd‎(2010)‎

Access to resources Favorite 16.044308