@article{Maciejewski:2009,
author
=
"A.Maciejewski and M.Przybylska",
title
=
"Non-integrability of restricted two body problems in constant curvature spaces",
journal
=
"Regular and Chaotic Dynamics",
volume
=
"Vol. 8",
number
=
"no 4",
pages
=
"413--430",
year
=
"2003",
}