Aggregatable Global Unicast Address ?

[anGGiat]

I've got problem understood about aggregatable global unicast address use to. acctually, i realize i'm not good understanding to IPv6 concept. I learn aggregation routing in bgp to build global routing IPv6 on IPv6 network. I was working my thesis for aggregatable global unicast address. would you give some tutorials or links suggestion that can i use for my thesis ?

Best Regards