@article{IM2_1972_6_2_a4,
     author = {T. N. Saburova},
     title = {Composite functions and their series in the {Faber--Schauder} system},
     journal = {Izvestiya. Mathematics },
     pages = {395--415},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {1972},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1972_6_2_a4/}
}