@article{JOLT_1991_1_2_a1,
     author = {K. Schmuedgen},
     title = { Non-Commutative {Covariant} {Differential} {Calculus} on {Quantum} {Spaces} and {Quantum} {Groups}},
     journal = {Journal of Lie Theory},
     pages = {125--134},
     year = {1991},
     volume = {1},
     number = {2},
     doi = {10.5802/jolt.13},
     zbl = {0760.17013},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.13/}
}