@article{DAN_1976_226_2_a4,
     author = {N. Ya. Lyashchenko and I. F. Gez' and A. G. Oleinik},
     title = {On two-sided approximations of {Runge--Kutta} type},
     journal = {Doklady Akademii Nauk},
     pages = {265--268},
     publisher = {mathdoc},
     volume = {226},
     number = {2},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_226_2_a4/}
}