@article{JOLT_2002_12_1_a9,
     author = {G. Cairns},
     title = {The {Approximative} {Centre} of a {Lie} {Algebra}},
     journal = {Journal of Lie Theory},
     pages = {205--216},
     year = {2002},
     volume = {12},
     number = {1},
     doi = {10.5802/jolt.258},
     zbl = {1024.17002},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.258/}
}