Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_2002__52_2_a7, author = {Kov\'a\v{c}ik, Ondrej}, title = {Once more on the double {Fourier-Haar} series}, journal = {Mathematica slovaca}, pages = {215--220}, publisher = {mathdoc}, volume = {52}, number = {2}, year = {2002}, mrnumber = {1935119}, zbl = {1007.42020}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_2002__52_2_a7/} }
Kováčik, Ondrej. Once more on the double Fourier-Haar series. Mathematica slovaca, Tome 52 (2002) no. 2, pp. 215-220. http://geodesic.mathdoc.fr/item/MASLO_2002__52_2_a7/