@article{AMI_1997_24_a14,
     author = {Gy\"orgy G\'at},
     title = {On the {Fej\'er} kernel functions with respect to the {Walsh-Paley} system},
     journal = {Annales mathematicae et informaticae},
     pages = {105--110},
     publisher = {mathdoc},
     volume = {24},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AMI_1997_24_a14/}
}