@article{MAT_1974_18_1_a7,
     author = {Ch. Fefferman},
     title = {The multiplier problem for the ball},
     journal = {Matematika},
     pages = {138--145},
     year = {1974},
     volume = {18},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1974_18_1_a7/}
}