@article{10_4064_sm_50_2_189_201,
     author = {A. Zygmund},
     title = {On {Fourier} coefficients and transforms of functions of two variables},
     journal = {Studia Mathematica},
     pages = {189--201},
     publisher = {mathdoc},
     volume = {50},
     number = {2},
     year = {1974},
     doi = {10.4064/sm-50-2-189-201},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-50-2-189-201/}
}