# Search results

Open Mathematics > 2016 > 14 > 1 > 324-337

Open Mathematics > 2014 > 12 > 6 > 896-910

Discussiones Mathematicae - General Algebra and Applications > 2014 > 34 > 2 > 191-201

Discussiones Mathematicae - General Algebra and Applications > 2013 > 33 > 2 > 233-247

Open Mathematics > 2011 > 9 > 6 > 1298-1311

Open Mathematics > 2011 > 9 > 6 > 1380-1388

Commentationes Mathematicae > 2011 > 51 > 1

Commentationes Mathematicae > 2010 > 50 > 2

Open Mathematics > 2007 > 5 > 3 > 484-492

Commentationes Mathematicae > 2007 > 47 > 1

Open Mathematics > 2005 > 3 > 1 > 83-97

Discussiones Mathematicae - General Algebra and Applications > 2004 > 24 > 1 > 63-74

Discussiones Mathematicae - General Algebra and Applications > 2003 > 23 > 2 > 115-123

Discussiones Mathematicae - General Algebra and Applications > 2001 > 21 > 2 > 229-237

Discussiones Mathematicae - General Algebra and Applications > 2000 > 20 > 1 > 87-95

Annales Polonici Mathematici > 1993 > 58 > 2 > 111-122