Journal of Algebra
Journal of Algebra > 2013 > 394 > Complete > 7-50
Journal of Algebra > 2013 > 394 > Complete > 296-309
Journal of Algebra > 2013 > 394 > Complete > 79-91
Journal of Algebra > 2013 > 394 > Complete > 7-50
Journal of Algebra > 2013 > 394 > Complete > 296-309
Journal of Algebra > 2013 > 394 > Complete > 79-91