Rationing in the United Kingdom meat, tea, jam, biscuits, breakfast cereals, cheese, eggs, lard, milk, and canned and dried fruit. In June 1942 the Combined Food Board was set up by Great Britain and the United States to coordinate the world supply of food to the Allies, with special attention to flows from the U.S. and Canada to Britain. Almost all foods apart from vegetables and bread were rationed by August 1942. Strict rationing inevitably created a black market. Almost all controlled items were rationed by weight but meat was rationed by price. Fresh vegetables and fruit were not rationed but supplies were limited. Some
Serial Item and Contribution Identifier to officially register the SICI namespace for URNs with IANA was made in 2002, but is currently dormant. SICI codes can be used as the "item ID" in a DOI identifier. In the following example, the number 10.1002 is the DOI's "publisher ID", a slash acts as a separator, and the rest, which is publisher-specific, is the SICI code: CrossRef no longer allows DOIs with colons to be registered, greatly reducing the usefulness of such SICIs. Serial Item and Contribution Identifier The Serial Item and Contribution Identifier (SICI) is a code (ANSI/NISO standard Z39.56) used to uniquely identify specific volumes,