@article{BMMS_2013_36_2_a8,
     author = {R. Ghanam and G. Thompson},
     title = {Minimal {Matrix} {Representations} of {Four-Dimensional} {Lie} {Algebras}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2013},
     volume = {36},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2013_36_2_a8/}
}