@article{10_14708_cm_v19i1_5846,
     author = {P. Pych},
     title = {The {Denjoy} integral in some approximation problems, {IV}},
     journal = {Commentationes Mathematicae},
     pages = { 117--125},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1976},
     doi = {10.14708/cm.v19i1.5846},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v19i1.5846/}
}