@article{10_1090_S0894_0347_02_00410_1,
     author = {Kim, Henry},
     title = {Functoriality for the exterior square of {\ensuremath{\mathit{G}}\ensuremath{\mathit{L}}₄} and the symmetric fourth of {\ensuremath{\mathit{G}}\ensuremath{\mathit{L}}₂}},
     journal = {Journal of the American Mathematical Society},
     pages = {139--183},
     year = {2003},
     volume = {16},
     number = {1},
     doi = {10.1090/S0894-0347-02-00410-1},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-02-00410-1/}
}