Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1971_1_a7, author = {V. I. Prokhorenko}, title = {Divergent {Fourier} series with respect to {Haar's} system}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {62--68}, publisher = {mathdoc}, number = {1}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1971_1_a7/} }
V. I. Prokhorenko. Divergent Fourier series with respect to Haar's system. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1971), pp. 62-68. http://geodesic.mathdoc.fr/item/IVM_1971_1_a7/