@article{AIF_1981__31_1_157_0,
     author = {Sj\"ogren, Peter and Sj\"olin, Per},
     title = {Littlewood-Paley decompositions and {Fourier} multipliers with singularities on certain sets},
     journal = {Annales de l'Institut Fourier},
     pages = {157--175},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {31},
     number = {1},
     year = {1981},
     doi = {10.5802/aif.821},
     mrnumber = {82g:42014},
     zbl = {0437.42011},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.821/}
}