@article{JLT_2008_18_2_JLT_2008_18_2_a13,
     author = {M. Crampin and T. Mestdag },
     title = {The {Inverse} {Problem} for {Invariant} {Lagrangians} on a {Lie} {Group}},
     journal = {Journal of Lie theory},
     pages = {471--502},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {2008},
     url = {http://geodesic.mathdoc.fr/item/JLT_2008_18_2_JLT_2008_18_2_a13/}
}