@article{MAN_1981__257_163562,
     author = {Jaroslav Lukes and Jan Maty},
     title = {On the {Boundary} {Behaviour} of the {Perron} {Generalized} {Solution.}},
     journal = {Mathematische Annalen},
     pages = {355--366},
     year = {1981},
     volume = {257},
     zbl = {0461.31003},
     url = {http://geodesic.mathdoc.fr/item/MAN_1981__257_163562/}
}