@article{JOLT_1991_1_2_a8,
     author = {A. May},
     title = { On a {Semigroup} in the {Work} of {Charles} {Loewner}},
     journal = {Journal of Lie Theory},
     pages = {193--204},
     year = {1991},
     volume = {1},
     number = {2},
     doi = {10.5802/jolt.20},
     zbl = {0898.01022},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.20/}
}