@article{JOLT_2008_18_2_a9,
     author = {M. Stroppel},
     title = {The {Klein} {Quadric} and the {Classification} of {Nilpotent} {Lie} {Algebras} of {Class} {Two}},
     journal = {Journal of Lie Theory},
     pages = {391--411},
     year = {2008},
     volume = {18},
     number = {2},
     doi = {10.5802/jolt.502},
     zbl = {1179.17013},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.502/}
}