Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS_1970__123_2_a3, author = {{\CYRI}.{\CYRYA}. {\CYRD}{\cyro}{\cyrr}{\cyrf}{\cyrm}{\cyra}{\cyrn}}, title = {{\CYRO} {\cyrs}{\cyrr}{\cyre}{\cyrd}{\cyrn}{\cyri}{\cyrh} {\cyri} {\cyrl}{\cyra}{\cyrp}{\cyrl}{\cyra}{\cyrs}{\cyri}{\cyra}{\cyrn}{\cyre} {\cyrf}{\cyru}{\cyrn}{\cyrk}{\cyrc}{\cyri}{\cyrishrt} {\cyrn}{\cyra} {\cyrg}{\cyri}{\cyrl}{\cyrsftsn}{\cyrb}{\cyre}{\cyrr}{\cyrt}{\cyro}{\cyrv}{\cyro}{\cyrm} {\cyrp}{\cyrr}{\cyro}{\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyrs}{\cyrt}{\cyrv}{\cyre}}, journal = {Matemati\v{c}eskij sbornik}, pages = {192--208}, publisher = {mathdoc}, volume = {123}, number = {2}, year = {1970}, zbl = {0217.17601}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MS_1970__123_2_a3/} }
И.Я. Дорфман. О средних и лапласиане функций на гильбертовом пространстве. Matematičeskij sbornik, Tome 123 (1970) no. 2, pp. 192-208. http://geodesic.mathdoc.fr/item/MS_1970__123_2_a3/