@article{CRMATH_2015__353_3_209_0,
     author = {Aleksandrov, Aleksei and Nazarov, Fedor and Peller, Vladimir},
     title = {Functions of perturbed noncommuting self-adjoint operators},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {209--214},
     publisher = {Elsevier},
     volume = {353},
     number = {3},
     year = {2015},
     doi = {10.1016/j.crma.2014.12.005},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/j.crma.2014.12.005/}
}