@article{AIF_1980__30_4_75_0,
     author = {Hirsch, Francis},
     title = {Quotients de fonctions d\'efinies-n\'egatives et synth\`ese spectrale},
     journal = {Annales de l'Institut Fourier},
     pages = {75--96},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {30},
     number = {4},
     year = {1980},
     doi = {10.5802/aif.809},
     mrnumber = {82f:43005},
     zbl = {0427.31010},
     language = {fr},
     url = {http://www.numdam.org/articles/10.5802/aif.809/}
}