@article{AIF_2004__54_6_1811_0,
     author = {Izumi, Shuzo},
     title = {Restrictions of smooth functions to a closed subset},
     journal = {Annales de l'Institut Fourier},
     pages = {1811--1826},
     year = {2004},
     publisher = {Association des Annales de l'Institut Fourier},
     volume = {54},
     number = {6},
     doi = {10.5802/aif.2067},
     mrnumber = {2134225},
     zbl = {1083.26009},
     language = {en},
     url = {https://www.numdam.org/articles/10.5802/aif.2067/}
}