@article{JOLT_2002_12_2_a6,
     author = {T. W. Judson},
     title = {Complete {Filtered} {Lie} {Algebras} over a {Vector} {Space} of {Dimension} {Two}},
     journal = {Journal of Lie Theory},
     pages = {423--447},
     year = {2002},
     volume = {12},
     number = {2},
     zbl = {1035.17029},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2002_12_2_a6/}
}