参考文献

Sindkhedkar, Milind Dattatraya; Desai, Vijaya Narayan; Loriya, Rajesh Maganlal; Patel, Mahesh Vithalbhai; Trivedi, Bharat Kalidas; Bora, Rajesh Onkardas; Diwakar, Santosh Devidas; Jadhav, Ganesh Rajaram; Pawar, Shivaji Sampatrao Patent: US2009/247478 A1, 2009 ; Location in patent: Page/Page column 46-47 ;