Imperial Language in Ephesians? Need help!

I am doing some research on how the Roman empire might be critiqued (or not) in Ephesians versus one of the undisputed letters (such as Galatians).  Does anyone know of a book length treatment of the political language in Ephesians with special interest in the question of resistence (subversion) or accommodation?  I know the Paul and Empire and Paul and Politics essays, but I am looking for something more thorough.  Any suggestions?

Thanks!