参考文献

Munson, Mark; Mareska, David A.; Kim, Youngboo; Groneberg, Robert D.; Rizzi, James; Rodriguez, Martha; Kim, Ganghyeok; Vigers, Guy; Rao, Chang; Balachari, Devan; Harvey, Darren Patent: US2004/192653 A1, 2004 ; US 20040192653 A1