http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
method of averaging in the theory of orthogonal series and some problems in the theory of bases
Metod usredneniĭ v teorii ortogonalʹnykh ri͡adov i nekotorye voprosy teorii bazisov. English
by S.V. Bockarev ; [translated by H.H. McFaden].
Translation of Metod usrednenii v teorii ortogonalnykh riadov i nekotorye voprosy teorii bazisov.
Number in Russian series statement: number 146 (1978).
Averaging method (Differential equations)
Trudy Matematicheskogo instituta imeni V.A. Steklova. English ; 1980, issue 3