Open invitation to tender, deadline 25.05.2012, for low-voltage installation work in South branch (lot 1) and East branch (lot 2) on the Wehrhahn line in Duesseldorf. Time limit for receipt of requests for documents or for accessing documents: 18.05.2012. Contact Landeshauptstadt Duesseldorf, Bauverwaltungsamt, tel +49 2118993902,fax +49 2118929080, e-mail ausschreibungen@duesseldorf.de. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=108327-2012. 16/12.