Journal article (2006) - C Kasemann (author), R Gusten (author), S Heyminck (author), T. Klein (author), Tillmann Klein (author), SD Philipp (author), A Korn (author), G Schneider (author), A Henseler (author), AM Baryshev (author), T.M. Klapwijk (author), T. M. Klapwijk (author)