By Dimitrova Ilinka   in Communications in Algebra

ISSN:0092-7872|40|5|1821-1826

Taylor & Francis Ltd‎(2012)‎

Access to resources Favorite 23.850029

By Dimitrova Ilinka   Koppitz Jörg   in Semigroup Forum

ISSN:0037-1912|82|1|172-180

Springer Publishing Company ‎(2011)‎

Access to resources Favorite 17.887522