UMTS + ATM

Hi all 

I need your help. 
I did get many documents on Mobile IP, but I need more information about ATM and UMTS. 

where do I can get any document online?

I'm looking forward to hear from you. 

Best regards 
Moses
/////////////////////////////////////////////////////////////////////////////// 
 
            YOUR BRAIN IS HUNGRY 
   Wireless COM Technology, News, and Opinion. 
////////////////////////////////////////////////////////////////////////////////