@article{ZNSL_1993_206_a2,
     author = {I. A. Boricheva and E. M. Dyn'kin},
     title = {Sarason transform in {Sobolev} space},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {33--39},
     publisher = {mathdoc},
     volume = {206},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1993_206_a2/}
}