@article{MZM_1985_37_4_a9,
     author = {S. \`E. Nechaev},
     title = {Functions of class $B^1_1$ on unit circle and {Hankel} kernel operators},
     journal = {Matemati\v{c}eskie zametki},
     pages = {528--531},
     publisher = {mathdoc},
     volume = {37},
     number = {4},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1985_37_4_a9/}
}