Cancellations must be received by 30 September to take effect at the end of the same year. Changes of address. Allow six weeks for all changes to become effective. 3 of the German Postal Services Data Protection Regulations, the German Post Office can inform the publisher of a subscriber's new address even if the subscriber has not submitted a formal application for mail to be forwarded. Subscribers not in agreement with this procedure may send a written complaint to Customer Service Journals, Karin Tiks, within 14 days of publication of this issue.
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