%0 Journal Article
%A V. Yu. Lotoreichik
%T Note on 2D Schr\"odinger operators with $\delta$-interactions on angles and crossing lines
%J Nanosistemy: fizika, himiâ, matematika
%D 2013
%P 166-172
%V 4
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NANO_2013_4_2_a0/
%G en
%F NANO_2013_4_2_a0