@article{Białynicki-Birula:2009,
author
=
"I.Białynicki-Birula and V.Cao Long",
title
=
"Energy levels of dressed atoms and resonance phenomena",
journal
=
"Acta Physica Polonica A",
volume
=
"Vol. 57",
number
=
"no 4",
pages
=
"599--611",
year
=
"1980",
}