Search results
Annales UMCS, Mathematica > 2014 > 68 > 1 > 59-66
Annales UMCS, Mathematica > 2013 > 67 > 2 > 65-78
Annales UMCS, Mathematica > 2009 > 63 > 1 > 1-16
Annales UMCS, Mathematica > 2014 > 68 > 1 > 59-66
Annales UMCS, Mathematica > 2013 > 67 > 2 > 65-78
Annales UMCS, Mathematica > 2009 > 63 > 1 > 1-16