Legal Assignment

the asssignment is a series of four questions, but I do have problems with one of the question. The question is "How the recent legal developments affecting the meaning of the 1992 decision the High Court in Mabo and Wik?".
soo please if anyone has any information on this issue, I would really apreciate, Thanks a bunch to anyone who submits an answer, I really apreciate.

That link explains everything! even links to search for evidence in support.
http://en.wikipedia.org/wiki/Mabo_v_Quee ...