@article{AIF_2005__55_3_753_0,
     author = {Oukhaba, Hassan},
     title = {Sign functions of imaginary quadratic fields and applications},
     journal = {Annales de l'Institut Fourier},
     pages = {753--772},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {55},
     number = {3},
     year = {2005},
     doi = {10.5802/aif.2113},
     mrnumber = {2149402},
     zbl = {02171524},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.2113/}
}