参考文献

XENTION LIMITED; JOHN, Derek, Edward; MULLA, Mushtaq; HAMLYN, Richard, John; JONES, Simon, Mark; HARTZOULAKIS, Basil; MADGE, David; FORD, John Patent: WO2010/23446 A1, 2010 ; Location in patent: Page/Page column 34 ; WO 2010/023446 A1