@article{JOLT_1994_4_1_a4,
     author = {D. Arnal and J. Ludwig},
     title = { Sums of {Adjoint} {Orbits}},
     journal = {Journal of Lie Theory},
     pages = {105--138},
     year = {1994},
     volume = {4},
     number = {1},
     doi = {10.5802/jolt.75},
     zbl = {0823.22010},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.75/}
}