@article{DAN_1983_272_4_a0,
     author = {L. V. Berlyand and I. Yu. Chudinovich},
     title = {Averaging of boundary value problems for higher-order differential},
     journal = {Doklady Akademii Nauk},
     pages = {777--780},
     publisher = {mathdoc},
     volume = {272},
     number = {4},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_272_4_a0/}
}