Documentation Center - User's Policy Documentation Centre Users� policy Our centre is open from 09h00 to 12h00 all days. Under exceptional circumstances, a different arrangement could be considered. Consulting our documents is free of charge; however, researchers are kindly encouraged to make a small contribution towards DCI finances by paying an annual membership fee of CHF 20.- Photocopying facilities are available at a price of CHF 0.15 per copy. Mailing of documents Upon previous arrangements, some documents can be ordered by mail. Price will depend on the volume of the document and place of destination. Persons ordering publications by mail are kindly encouraged to subscribe to a CHF 20.- annual membership fee.