Journal article (2010) - S.N. Dorenbos (author), H Sasakura (author), S Inoue (author), H Kumano (author), CM Natarajan (author), RH Hadfield (author), T Zijlstra (author), T.M. Klapwijk (author), V.G. Zwiller (author), I Suemune (author), MP van Kouwen (author), N. Akopian (author), S Adachi (author), N Namekata (author), J Motohisa (author), Y. Kobayashi (author), K Tomioka (author), T Fukui (author)