@article{JOLT_2013_23_2_a1,
     author = {Giampaolo Cicogna and Giuseppe Gaeta and Sebastian Walcher},
     title = {Orbital {Reducibility} and a {Generalization} of {Lambda} {Symmetries}},
     journal = {Journal of Lie Theory},
     pages = {357--381},
     year = {2013},
     volume = {23},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2013_23_2_a1/}
}