@article{CMUC_1999__40_3_a6,
     author = {Lieberman, Gary M.},
     title = {Nonuniqueness for some linear oblique derivative problems for elliptic equations},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {477--481},
     publisher = {mathdoc},
     volume = {40},
     number = {3},
     year = {1999},
     mrnumber = {1732488},
     zbl = {1064.35508},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1999__40_3_a6/}
}