@article{TRSPY_2011_273_a7,
     author = {Jean-Pierre Kahane},
     title = {Winding numbers and {Fourier} series},
     journal = {Informatics and Automation},
     pages = {207--211},
     publisher = {mathdoc},
     volume = {273},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2011_273_a7/}
}