%0 Journal Article
%A E. H. Eyvazov
%T Higher order differential operators with finite number of $\delta$-interactions in multivariate case
%J Žurnal matematičeskoj fiziki, analiza, geometrii
%D 2010
%P 266-276
%V 6
%N 3
%U http://geodesic.mathdoc.fr/item/JMAG_2010_6_3_a1/
%G en
%F JMAG_2010_6_3_a1