@article{AA_2003_15_4_a3,
     author = {V. V. Vlasov and S. A. Ivanov},
     title = {Sobolev space estimates for solutions of equations with retardation, and a~basis built from divided differences},
     journal = {Algebra i analiz},
     pages = {115--141},
     year = {2003},
     volume = {15},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2003_15_4_a3/}
}