@article{DAN_1991_319_2_a5,
     author = {Nguyen Thi Thien Hoa},
     title = {The trigonometric {Taylor} formula, a trigonometric analogue of {Sobolev} classes, and trigonometric splines},
     journal = {Doklady Akademii Nauk},
     pages = {283--286},
     publisher = {mathdoc},
     volume = {319},
     number = {2},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_319_2_a5/}
}