Search results for: Ferdinand Filip
Periodica Mathematica Hungarica > 2010 > 60 > 2 > 115-126
Mathematica Slovaca > 2009 > 59 > 3 > 275-282
Periodica Mathematica Hungarica > 2010 > 60 > 2 > 115-126
Mathematica Slovaca > 2009 > 59 > 3 > 275-282