@article{MS2_1975__36_166399,
     author = {Lars v. Ahlfors},
     title = {Invariant operators and integral representations in hyperbolic space.},
     journal = {Mathematica Scandinavica},
     pages = {27--44},
     publisher = {mathdoc},
     volume = {36},
     year = {1975},
     zbl = {0313.31009},
     url = {http://geodesic.mathdoc.fr/item/MS2_1975__36_166399/}
}