Engineering decoherence in Josephson persistent-current qubits - Measurement apparatus and other electromagnetic environmentsC. H. van der Wal, F. K. Wilhelm, C. J.P.M. Harmans and J. E. MooijEur. Phys. J. B, 31 1 (2003) 111-124DOI: https://doi.org/10.1140/epjb/e2003-00015-9