@article{SPS_1995__29__218_0,
     author = {Hu, Yao-Zhong},
     title = {On the differentiability of functions of an operator},
     journal = {S\'eminaire de probabilit\'es de Strasbourg},
     pages = {218--219},
     publisher = {Springer - Lecture Notes in Mathematics},
     volume = {29},
     year = {1995},
     mrnumber = {1459462},
     zbl = {0837.47013},
     language = {en},
     url = {http://www.numdam.org/item/SPS_1995__29__218_0/}
}