@article{JOLT_2012_22_2_a0,
     author = {Markus Hunziker and Mark R. Sepanski and Ronald J. Stanke},
     title = {The {Minimal} {Representation} of the  {Conformal} {Group} and {Classical} {Solutions} to the {Wave} {Equation}},
     journal = {Journal of Lie Theory},
     pages = {301--360},
     year = {2012},
     volume = {22},
     number = {2},
     zbl = {1250.22015},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2012_22_2_a0/}
}