@article{SM_1972_16_2_a3,
     author = {A. A. Bonami},
     title = {Integral inequalities for conjugate harmonic functions of several variables},
     journal = {Sbornik. Mathematics},
     pages = {191--208},
     year = {1972},
     volume = {16},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1972_16_2_a3/}
}