@article{CMH_1929__1_138524,
     author = {M. Plancherel},
     title = {Formule de {Parseval} et transformations fonctionelles orthogonales.},
     journal = {Commentarii mathematici Helvetici},
     pages = {273--288},
     publisher = {mathdoc},
     volume = {1},
     year = {1929},
     zbl = {55.0167.03},
     url = {http://geodesic.mathdoc.fr/item/CMH_1929__1_138524/}
}