参考文献

Boehringer, Markus; Zbinden, Katrin Groebke; Haap, Wolfgang; Hilpert, Hans; Himber, Jacques; Humm, Roland; Iding, Hans; Knopp, Dietmar; Panday, Narendra; Ricklin, Fabienne; Stahl, Christoph Martin Patent: US2006/106016 A1, 2006 ; Location in patent: Page/Page column 42 ;