@article{GMJ_1997__4_6_47868,
     author = {Topuria, S.},
     title = {Boundary properties of first-order partial derivatives of the {Poisson} integral for the half-space .},
     journal = {Georgian Mathematical Journal},
     pages = {585--600},
     publisher = {mathdoc},
     volume = {4},
     number = {6},
     year = {1997},
     zbl = {0888.31002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_1997__4_6_47868/}
}