@article{Gielerak:2009,
author
=
"R.Gielerak and R.Olkiewicz",
title
=
"Gentle perturbations of the free Bose gas. The critical regime",
journal
=
"Journal of Mathematical Physics",
volume
=
"Vol. 37",
number
=
"no 3",
pages
=
"1268--1286",
year
=
"1996",
}