@article{JOLT_2003_13_1_a6,
     author = {G. Benkart and O. Smirnov},
     title = {Lie {Algebras} {Graded} by the {Root} {System} {BC\protect\textsubscript{1}}},
     journal = {Journal of Lie Theory},
     pages = {91--132},
     year = {2003},
     volume = {13},
     number = {1},
     doi = {10.5802/jolt.293},
     zbl = {1015.17028},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.293/}
}