Conference paper (2015) - M Shcherbatenko (author), Y Lobanov (author), A. Rodin (author), T.M. Klapwijk (author), GN Gol'tsman (author), O Benderov (author), A Shurakov (author), A Ignatov (author), N Titova (author), M. Finkel (author), S Maslennikov (author), N. Kaurova (author), BM Voronov (author)