@article{SJVM_2009_12_4_a1,
     author = {A. K. Alekseev and I. N. Makhnev},
     title = {On using the {Lagrange} coefficients for a~posteriori error estimation},
     journal = {Sibirskij \v{z}urnal vy\v{c}islitelʹnoj matematiki},
     pages = {375--388},
     year = {2009},
     volume = {12},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJVM_2009_12_4_a1/}
}