@article{ZNSL_1981_110_a5,
     author = {L. V. Kapitanski},
     title = {On the coincidence of the spaces $\overset{\circ}J{}^1_2(\Omega)$ and $\widehat{\overset{\circ}J}{}^1_2(\Omega)$  for plane domains $\Omega$ with exits to the infinity},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {74--80},
     publisher = {mathdoc},
     volume = {110},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1981_110_a5/}
}