@article{JOLT_1998_8_1_a8,
     author = {C. Birkenhake},
     title = { Complex {Structures} {Contained} in {Classical} {Groups}},
     journal = {Journal of Lie Theory},
     pages = {139--152},
     year = {1998},
     volume = {8},
     number = {1},
     doi = {10.5802/jolt.134},
     zbl = {0901.22007},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.134/}
}