@@ -313,8 +313,8 @@ names.
<br />Manufacturer: IBM
<br /><a href="http://publibfp.dhe.ibm.com/epubs/pdf/dz9zr011.pdf">z/Architecture Principles of Operation</a>
<br /><a href="http://publibfp.dhe.ibm.com/epubs/pdf/dz9ar008.pdf">ESA/390 Principles of Operation</a>
- <br /><a href="http://refspecs.linuxbase.org/ELF/zSeries/lzsabi0_zSeries.html">Linux for z Systems ABI</a>
- <br /><a href="http://refspecs.linuxbase.org/ELF/zSeries/lzsabi0_s390.html">Linux for S/390 ABI</a>
+ <br /><a href="https://refspecs.linuxbase.org/ELF/zSeries/lzsabi0_zSeries.html">Linux for z Systems ABI</a>
+ <br /><a href="https://refspecs.linuxbase.org/ELF/zSeries/lzsabi0_s390.html">Linux for S/390 ABI</a>
</li>
</ul>