The MathSciNet usage statistics reporting system follows much of
the COUNTER Code of Practice, release 1, (December 2002) for
MathSciNet Mathematical Reviews on the Web  MathSciNet Usage
Statistics: Frequently asked questions   What model was used for
MathSciNet usage statistics? The MathSciNet usage statistics
reporting system follows much of the COUNTER Code of Practice,
release 1, (December 2002) for databases. For more information
about the COUNTER Code of Practice, please visit (  When are
usage statistics made available? Monthly usage statistics are
posted within two weeks following the end of the month. Email
notification is sent to the contact email address that is
attached to the subscription. Usage statistics for previous
months and/or years can be accessed at any time.  How is access
to the usage statistics reports authenticated? Access
authentication is done via Internet Protocol (IP) address.  What
is the definition of a session? A session is a successful
request of an online service. It is one c