%0 Journal Article
%A A. S. Blagoveshchenskii
%A K. K. Lavrent'ev
%T Inverse problems of finding boundary condition in the theory of propagation of nonstationary waves.~I
%J Zapiski Nauchnykh Seminarov POMI
%D 1975
%P 78-84
%V 51
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1975_51_a2/
%G ru
%F ZNSL_1975_51_a2