[TYPO3-english] how to use multilanguage tables with l18n_diffsource attribute

[Stefanos Karasavvidis]

I'm programming my very first extension with multilanguage support.

Kickstarter created the sys_language_uid, l18n_parent and
l18n_diffsource attributes in my table. From what I've read, I can
understand what the first 2 do, but what about l18n_diffsource? What's
the meaning of this attribute and how do I use it?

Is there any example on inserting and retrieving records from such a table?

Thanks in advance

Stefanos