参考文献

Guedat, Philippe; Boissy, Guillaume; Borg-Capra, Catherine; Colland, Frederic; Daviet, Laurent; Formstecher, Etienne; Jacq, Xavier; Rain, Jean-Christophe; Delansorne, Rerni; Vallese, Stefania; Colombo, Matteo Patent: US2007/32499 A1, 2007 ; Location in patent: Page/Page column 12 ; US 20070032499 A1