@article{Drzewiński:2009,
author
=
"A.Drzewiński and R.Dekeyser",
title
=
"Renormalization of the anisotropic linear XY model",
journal
=
"Physical Review B",
volume
=
"Vol. 51",
number
=
"no 21",
pages
=
"218--228",
year
=
"1995",
}