@article{JOLT_2023_33_1_a17,
     author = {G. A. Willis},
     title = {Groups with {Flat-Rank} {Greater} {Than} 1},
     journal = {Journal of Lie Theory},
     pages = {433--452},
     year = {2023},
     volume = {33},
     number = {1},
     zbl = {1531.22002},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2023_33_1_a17/}
}