参考文献

ORION CORPORATION; LINNANEN, Tero; WOHLFAHRT, Gerd; NANDURI, Srinivas; UJJINAMATADA, Ravi; RAJAGOPALAN, Srinivasan; MUKHERJEE, Subhendu Patent: WO2013/53983 A1, 2013 ; Location in patent: Page/Page column 29 ;