@article{ZNSL_2008_354_a10,
     author = {V. B. Philippov},
     title = {Point source field near concave boundary},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {212--219},
     year = {2008},
     volume = {354},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2008_354_a10/}
}