@article{DAN_1964_158_1_a12,
     author = {S. Yu. Ul'm},
     title = {Iteration methods with second-order divided differences},
     journal = {Doklady Akademii Nauk},
     pages = {56--58},
     publisher = {mathdoc},
     volume = {158},
     number = {1},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_158_1_a12/}
}