@article{10_4064_sm_10_1_97_103,
     author = {A. Zygmund},
     title = {On certain methods of summability associated with conjugate trigonometric series},
     journal = {Studia Mathematica},
     pages = {97--103},
     year = {1948},
     volume = {10},
     number = {1},
     doi = {10.4064/sm-10-1-97-103},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-10-1-97-103/}
}