@article{JOLT_2013_23_2_a1,
     author = {G. Cicogna and G. Gaeta and S. Walcher},
     title = {Orbital {Reducibility} and a {Generalization} of {Lambda} {Symmetries}},
     journal = {Journal of Lie Theory},
     pages = {357--381},
     year = {2013},
     volume = {23},
     number = {2},
     doi = {10.5802/jolt.729},
     zbl = {1286.34056},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.729/}
}