How to use the rpki.net Ubuntu APT repository

How to use this APT repository:

These packages are regenerated automatically from the Subversion trunk by a cron job running a pbuilder environment. Please report any problems.

Name                    Last modified      Size  Description
Parent Directory - pool/ 2013-03-08 15:03 - dists/ 2014-09-28 06:04 -
Apache/2.4.29 (FreeBSD) OpenSSL/1.0.2m SVN/1.9.7 mod_wsgi/4.5.18 Python/2.7 Server at download.rpki.net Port 80