@article{id_5159,
title = "A superconducting 180 degrees hybrid ring coupler for circuit quantum electrodynamics",
author = "E. Hoffmann, F. Deppe, T. Niemczyk, T. Wirth, E. P. Menzel, G. Wild, H. Huebl, M. Mariantoni, T. Weissl, A. Lukashenko, A. P. Zhuravel, A. V. Ustinov, A. Marx, R. Gross",
journal = "Applied Physics Letters",
volume = "97",
year = "2010",
pages = "222508",
url = "http://dx.doi.org/10.1063/1.3522650",
}