@article{MAN_1985__272_164000,
     author = {M.K. Murray},
     title = {A {Twistor} {Correspondence} for {Homogeneous} {Polynomial} {Differential} {Operators.}},
     journal = {Mathematische Annalen},
     pages = {99--116},
     year = {1985},
     volume = {272},
     zbl = {0548.32016},
     url = {http://geodesic.mathdoc.fr/item/MAN_1985__272_164000/}
}