@article{AIF_1993__43_3_865_0,
     author = {Dencker, Nils},
     title = {Preparation theorems for matrix valued functions},
     journal = {Annales de l'Institut Fourier},
     pages = {865--892},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {43},
     number = {3},
     year = {1993},
     doi = {10.5802/aif.1359},
     mrnumber = {95f:32009},
     zbl = {0783.58010},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.1359/}
}