@article{IM2_2007_71_1_a5,
     author = {A. V. Rozhdestvenskii},
     title = {On necessary conditions for {Fourier} multipliers of weak type},
     journal = {Izvestiya. Mathematics },
     pages = {75--95},
     publisher = {mathdoc},
     volume = {71},
     number = {1},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2007_71_1_a5/}
}