@article{Łenski:2012,
author
=
"W.Łenski and B.Szal",
title
=
"Pointwise approximation of functions from [...] by linear operators of their Fourier series",
journal
=
"Journal of Function Spaces and Applications",
volume
=
"Vol. 2012",
pages
=
"[16]",
year
=
"2012",
}