[1] [CITE@en[AE::timer の仕様について - tokuhirom's blog.]]
( ([TIME[2013-05-23 06:50:22 +09:00]] 版))
<http://blog.64p.org/entry/20090918/1253267536>

[2] [CITE[AnyEvent - search.cpan.org]]
( ([TIME[2013-05-23 06:50:43 +09:00]] 版))
<http://search.cpan.org/dist/AnyEvent/lib/AnyEvent.pm#AnyEvent->now_update>