|
PROLA is The American Physical Society's Physical Review Online Archive. PROLA is the concrete expression of APS's commitment to ensuring the immediate and long-term accessibility all journal content that we publish. We have an agreement with the Library of Congress establishing a repository of all PROLA material. In addition, a PROLA mirror has been hosted at Cornell University library since May 2001.
The server was launched in 1998, with an archive of online copy of Physical Review from 1985 through 1996. Starting in January 2001, it was expanded to include all APS journal content back to 1893. We also have begun a year-by-year migration of recent material into PROLA. For the year 2003, 1999 material has been migrated. In 2004, 2000 was migrated and so forth. Reviews of Modern Physics is now part of PROLA as well. The complete archive consists of all of Physical Review back to 1893, all of Physical Review Letters back to 1958, and all of Reviews of Modern Physics back to 1929.
The majority of the collection consists of scanned images of the printed journals available as either GIF images or as PDF files. Portions of the 1995 and 1996 content and all content thereafter, however, consist of PDF files that are produced directly as part of our paper printing process.
In addition to the scanned images, we have available much of the original electronic data used for typesetting the journal, or for earlier material, OCR'ed text. PROLA uses this, coupled with an XML bibliographic database, as the basis for its search index and reference linking. The XML data is also used to create wrappers (i.e., title/author/abstract pages) around the articles. These wrappers are a core piece of APS's electronic strategy. The intention is to keep these wrappers freely available and easy to locate so that they can serve as natural destinations for links to Physical Review articles.
|
