@article{AA_2008_20_5_a5,
     author = {V. G. Maz'ya and S. V. Poborchiǐ},
     title = {On solvability of the {Neumann} problem in domains with peak},
     journal = {Algebra i analiz},
     pages = {109--154},
     publisher = {mathdoc},
     volume = {20},
     number = {5},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2008_20_5_a5/}
}