@article{JOLT_2004_14_1_a10,
     author = {D. Pickrell},
     title = {H\protect\textsuperscript{4}(BK, {Z)} and {Operator} {Algebras}},
     journal = {Journal of Lie Theory},
     pages = {199--213},
     year = {2004},
     volume = {14},
     number = {1},
     doi = {10.5802/jolt.334},
     zbl = {1087.46041},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.334/}
}