Ashenkite، M. A. A. S.، و Chen، W. K. (1994). Graph -Theoretical Approach to Placement and Routing Problems in Very Large Scale Integration Design (رسالة دكتوراه غير منشورة). University of Illinois at Chicago، شيكاغو. مسترجع من http://search.mandumah.com/Record/619896
Ashenkite، Mohamed Al Amin S.، و Wai Kai Chen. "Graph -Theoretical Approach to Placement and Routing Problems in Very Large Scale Integration Design" رسالة دكتوراه. University of Illinois at Chicago، شيكاغو، 1994. مسترجع من http://search.mandumah.com/Record/619896