@article{JOLT_2003_13_2_a2,
     author = {W. Wojtynski},
     title = {Groups of strings},
     journal = {Journal of Lie Theory},
     pages = {359--382},
     year = {2003},
     volume = {13},
     number = {2},
     doi = {10.5802/jolt.308},
     zbl = {1028.22019},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.308/}
}