@article{DAN_1990_313_4_a2,
     author = {{\DJ}inh Dung},
     title = {Reconstruction and one-sided approximation of periodic functions},
     journal = {Doklady Akademii Nauk},
     pages = {787--790},
     publisher = {mathdoc},
     volume = {313},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_313_4_a2/}
}