As we have already seen there are many primary sources
of information in physics. Indeed the problem is to find just
what you want among this mass of information. Fortunately there
are tools that make this task easier. Information from primary
sources has been collected together and organised under subject
headings and authors in secondary publications called Abstracts
and Indexes . These are published at regular intervals -
weekly, monthly or quarterly and are usually brought together, or
cumulated, annually or for even longer intervals. As well as
paper format, many of these publications are also available on CD-ROM
or accessible for online searching on a remote host computer.
There are providing abstracts of the literature in physics in our
Library: