@article{10_4064_am38_4_1,
     author = {Mikhail Borsuk and Krzysztof \.Zyjewski},
     title = {Nonlocal {Robin} problem for elliptic second order equations in a plane domain with a boundary corner point},
     journal = {Applicationes Mathematicae},
     pages = {369--411},
     publisher = {mathdoc},
     volume = {38},
     number = {4},
     year = {2011},
     doi = {10.4064/am38-4-1},
     zbl = {1232.35041},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am38-4-1/}
}