@article{GMJ_1998__5_2_48024,
     author = {Jokhadze, O.},
     title = {On the boundary value problem in a dihedral angle for normally hyperbolic systems of first order.},
     journal = {Georgian Mathematical Journal},
     pages = {121--138},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1998},
     zbl = {0902.35067},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_1998__5_2_48024/}
}