+ <productname>systemd</productname>
+ <authorgroup>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Greg</firstname>
+ <surname>Kroah-Hartmann</surname>
+ <email>greg@kroah.com</email>
+ </author>
+ <author>
+ <contrib>Developer</contrib>
+ <firstname>Kay</firstname>
+ <surname>Sievers</surname>
+ <email>kay@vrfy.org</email>
+ </author>
+ </authorgroup>