@article{Maciejewski:2012,
author
=
"A.Maciejewski and M.Przybylska",
title
=
"Integrable variational equations of non-integrable systems",
journal
=
"Regular and Chaotic Dynamics",
volume
=
"Vol. 17",
number
=
"no 3-4",
pages
=
"337--358",
year
=
"2012",
}