参考文献
Bolugoddu, Vijayabhaskar; Mamilla, Srinivas Reddy; Golla, Chinamala Kondaiah; Madduri, Srinivasa Reddy; Kodipyaka, Ravinder; Das, Surajit; Bhushan, Indu; Mohan, Mailatur Sivaraman
Patent: US2007/232680 A1, 2007 ;
Location in patent: Page/Page column 11 ;