Journal article (2014) - Y Lobanov (author), M Shcherbatenko (author), AA Verevkin (author), BM Voronov (author), Y Ponurovsky (author), T.M. Klapwijk (author), GN Gol'tsman (author), A Shurako (author), AV Rodin (author), A Klimchu (author), AI Nadezhdinsky (author), S Maslennikov (author), L Larionov (author), M. Finkel (author), A Semenov (author)