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@article{MS_1987__172_3_a1, author = {{\CYRA}.{\CYRK}. {\CYRF}{\cyrr}{\cyra}{\cyrg}{\cyre}{\cyrl}{\cyra}}, title = {{\CYRO} {\cyrv}{\cyro}{\cyrz}{\cyrm}{\cyru}{\cyrshch}{\cyre}{\cyrn}{\cyri}{\cyri} {\cyrp}{\cyro}{\cyrl}{\cyri}{\cyrg}{\cyra}{\cyrr}{\cyrm}{\cyro}{\cyrn}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyro}{\cyrg}{\cyro} {\cyro}{\cyrp}{\cyre}{\cyrr}{\cyra}{\cyrt}{\cyro}{\cyrr}{\cyra} {\cyrs} {\cyrd}{\cyre}{\cyrl}{\cyrsftsn}{\cyrt}{\cyra}{\cyro}{\cyrb}{\cyrr}{\cyra}{\cyrz}{\cyrn}{\cyrery}{\cyrm}{\cyri} {\cyrp}{\cyro}{\cyrt}{\cyre}{\cyrn}{\cyrc}{\cyri}{\cyra}{\cyrl}{\cyra}{\cyrm}{\cyri}}, journal = {Matemati\v{c}eskij sbornik}, pages = {386--393}, publisher = {mathdoc}, volume = {172}, number = {3}, year = {1987}, zbl = {0652.31005}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1987__172_3_a1/} }
А.К. Фрагела. О возмущении полигармонического оператора с дельтаобразными потенциалами. Matematičeskij sbornik, Tome 172 (1987) no. 3, pp. 386-393. http://geodesic.mathdoc.fr/item/MS_1987__172_3_a1/