Contingents are reserved in the following hotels:

Hotel Landhaus Gut Keuchhof

Braugasse 14

D-50859 Köln

Single rooms incl. breakfast: 69 € per night

NOTE: Contingent will expire December 31, 2012

Mercure Hotel Köln Junkersdorf Am Stadion

Aachener Strasse 1059-1061

D-50858 Köln

Phone: 0221 - 48982913

Homepage: http://www.mercure.com/de/hotel-5365-mercure-hotel-koeln-junkersdorf-am-stadion/index.shtml

Single rooms excl. breakfast: 69 € per night, breakfast buffet: 18 € per day

NOTE: 50% of contingent will expire December 10, 2012, 100% of contingent will expire December 31, 2012.

Keyword: "Max Planck"