@article{10_14708_cm_v10i2_5590,
     author = {H. Ratajski},
     title = {On pointwise convergence of orthogonal polynomial series},
     journal = {Commentationes Mathematicae},
     pages = { 169--173},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {1967},
     doi = {10.14708/cm.v10i2.5590},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v10i2.5590/}
}