Horozov, Ivan Max Planck Institute for Mathematics, Max Planck Society;
https://doi.org/10.48550/arXiv.math/0611847 (Preprint)
https://dx.doi.org/10.4310/MRL.2014.v21.n5.a9 (Publisher version)
Horozov, I. (2014). Cohomology of GL₄(Z) with nontrivial coefficients. Mathematical Research Letters, 21(5), 1111-1136. doi:10.4310/MRL.2014.v21.n5.a9.