@article{MZ_1956__66_169612,
     author = {Yung-Ming Chen},
     title = {On the integrability of functions defined by trigonometrical series.},
     journal = {Mathematische Zeitschrift},
     pages = {9--12},
     publisher = {mathdoc},
     volume = {66},
     year = {1956},
     zbl = {0071.06002},
     url = {http://geodesic.mathdoc.fr/item/MZ_1956__66_169612/}
}