@article{STUMA_1996__119_3_216296,
     author = {Abdellah Youssfi},
     title = {Regularity properties of singular integral operators},
     journal = {Studia Mathematica},
     pages = {199},
     publisher = {mathdoc},
     volume = {119},
     number = {3},
     year = {1996},
     zbl = {0857.42008},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/STUMA_1996__119_3_216296/}
}