Search results for: Z. Szydełko
Opuscula Mathematica > 2009 > Vol. 29, no. 2 > 117-129
Opuscula Mathematica > 2008 > Vol. 28, no. 2 > 109-121
Opuscula Mathematica > 2009 > Vol. 29, no. 2 > 117-129
Opuscula Mathematica > 2008 > Vol. 28, no. 2 > 109-121