@article{Nakagawa:2009,
author
=
"K.Nakagawa and A.Maciejewski and M.Przybylska",
title
=
"New integrable Hamiltonian system with first integral quartic in momenta",
journal
=
"Physics Letters, Section A: General, Atomic and Solid State Physics",
volume
=
"Vol. 343",
pages
=
"171--173",
year
=
"2005",
}