@article{10_4064_sm_49_1_69_80,
     author = {Jau-D. Chen},
     title = {A theorem of {Cesari} on mulitple {Fourier} series},
     journal = {Studia Mathematica},
     pages = {69--80},
     year = {1973},
     volume = {49},
     number = {1},
     doi = {10.4064/sm-49-1-69-80},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-49-1-69-80/}
}