vCenter 5.5 unattended installation documentation?

Is there any documentation for doing a command-line (unattended) installation of vCenter 5.5? For 5.1 I followed this guide (http://www.vmware.com/files/pdf/techpaper/vsp_51_vcserver_cmdline_install.pdf) but I haven't been able to find the equivalent for 5.5. The parameters for SSO and the Inventory Service have changed, and well, that's as far as I've made it so far.

Thanks!