@article{JOLT_2016_26_4_a3,
     author = {R. Biggs and C. C. Remsing},
     title = {On the {Classification} of {Real} {Four-Dimensional} {Lie} {Groups}},
     journal = {Journal of Lie Theory},
     pages = {1001--1035},
     year = {2016},
     volume = {26},
     number = {4},
     doi = {10.5802/jolt.921},
     zbl = {1356.22008},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.921/}
}