@article{JFAA_1994__1_2_59460,
     author = {Krzysztof Nowak},
     title = {Singular {Value}  {Estimates} for {Certain} {Convolution-Product} {Operators.}},
     journal = {The journal of Fourier analysis and applications},
     pages = {297--310},
     year = {1994},
     volume = {1},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/JFAA_1994__1_2_59460/}
}