@article{Goździewski:2009,
author
=
"K.Goździewski and A.Maciejewski",
title
=
"Unrestricted planar problem of a symmetric body and a point mass. Triangular libration points and their stability",
journal
=
"Celestial Mechanics and Dynamical Astronomy",
number
=
"no 75",
pages
=
"251--285",
year
=
"2000",
}