@article{JOLT_2021_31_4_a15,
     author = {W. A. Johnson},
     title = {Exponential {Hilbert} {Series} and {Geometric} {Invariants} of {Flag} {Varieties}},
     journal = {Journal of Lie Theory},
     pages = {1141--1152},
     year = {2021},
     volume = {31},
     number = {4},
     doi = {10.5802/jolt.1215},
     zbl = {1485.14094},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.1215/}
}