参考文献

Zhou, Maotang X.; Reiff, Emily A.; Vemishetti, Purushotham; Pendri, Yadagiri R.; Singh, Ambarish K.; Prasad, Siva Josyula; Dhokte, Ulhas P.; Qian, Xinhua; Mountford, Pia; Hartung, Kerry B.; Sailes, Helen Patent: US2005/272932 A1, 2005 ; Location in patent: Page/Page column 19-20 ;