@article{CRMATH_2014__352_6_503_0,
     author = {Komla Domelevo and Stefanie Petermichl},
     title = {Sharp $ {L}^{p}$ estimates for discrete second-order {Riesz} transforms},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {503--506},
     publisher = {Elsevier},
     volume = {352},
     number = {6},
     year = {2014},
     doi = {10.1016/j.crma.2014.03.022},
     language = {en},
}