@article{JRAM_1971__246_151086,
     author = {Wasfi A. Hijab and Andrawus Khuri},
     title = {Concentrated force in quarter-space with a free or fixed half-plane and mixed boundary conditions on the other one.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {189--201},
     publisher = {mathdoc},
     volume = {246},
     year = {1971},
     zbl = {0214.24104},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1971__246_151086/}
}