@article{JRAM_1975__272_151525,
     author = {L. Sario and C. Wang and D. Hada},
     title = {Dirichlet finite biharmonic functions on the {Poincar\'e} {N-ball.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {92--101},
     publisher = {mathdoc},
     volume = {272},
     year = {1975},
     zbl = {0296.31013},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1975__272_151525/}
}