@article{CRMATH_2009__347_5-6_227_0,
     author = {Bolotnikov, Vladimir},
     title = {On boundary angular derivatives of an analytic self-map of the unit disk},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {227--230},
     publisher = {Elsevier},
     volume = {347},
     number = {5-6},
     year = {2009},
     doi = {10.1016/j.crma.2009.01.018},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2009.01.018/}
}