%0 Journal Article %A J. Brüning %A S. Yu. Dobrokhotov %A M. I. Katsnel'son %A D. S. Minenkov %T Semiclassical asymptotic approximations and the~density of states for the~two-dimensional radially symmetric Schr\"odinger and Dirac equations in tunnel microscopy problems %J Teoretičeskaâ i matematičeskaâ fizika %D 2016 %P 386-400 %V 186 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2016_186_3_a2/ %G ru %F TMF_2016_186_3_a2