Invitation to tender by negotiated procedure, deadline 11.01.2012, for construction in mainly karst of twin-tube, single-track, 4.7 m-diameter Boessler tunnel in two lots of 3.67 km and 820 m with 280 m cover, and 4.82 km Steinbuehel tunnel as Lot 3 with 120 m cover, all with crosspassages at 500 m intervals. Further information, specs and docs from BBA (TEI 3) at DB AG in Stuttgart, fax +49 6926521939, e-mail einkauf-s21nbs@deutschebahn.com, to where tenders or requests to participate must be sent. For full Stuttgart 21 project history visit tunnelbuilder archive de/22. For this contract notice visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=349672-2011. 45/11.