OXpedia installation guide: Ubuntu 12.04 repository down - alternative?

[Peter Packet]

Hi there,

I am trying to install OX 6 using the OXpedia installation guide for Ubuntu 12.04. Link: http://oxpedia.org/wiki/index.php?ti...r_Ubuntu_12.04

First of all you have to add the repositories

$ sudo vim /etc/apt/sources.list

[...]
deb http://download.opensuse.org/reposit...xUbuntu_12.04/ /
deb http://download.opensuse.org/reposit...xUbuntu_12.04/ /

The first link - the backend - is not available.
Is there an alternative repository for OX on Ubuntu 12.04?

Thank you for your help.

Peter