@article{AIF_2010__60_7_2303_0,
     author = {Besson, G\'erard},
     title = {Pierre and Sylvestre: some recollections},
     journal = {Annales de l'Institut Fourier},
     publisher = {Association des Annales de l'institut Fourier},
     volume = {60},
     number = {7},
     year = {2010},
     pages = {2303-2305},
     doi = {10.5802/aif.2607},
     mrnumber = {2848670},
     zbl = {1254.01026},
     language = {en},
     url = {http://www.numdam.org/item/AIF_2010__60_7_2303_0}
}

Besson, Gérard. Pierre and Sylvestre: some recollections. Annales de l'Institut Fourier, Volume 60 (2010) no. 7, pp. 2303-2305. doi : 10.5802/aif.2607. http://www.numdam.org/item/AIF_2010__60_7_2303_0/