参考文献

GRINDEKS, A JOINT STOCK COMPANY; LUSIS, Viesturs; STUPNIKOVA, Svetlana; MUCENIECE, Dzintra; ZANDERSONS, Armands; LAIPNIEKS, Deniss; LAVRINOVICS, Edvards; JONANE-OSA, Indra Patent: WO2013/120852 A1, 2013 ; Location in patent: Page/Page column 13; 14 ;