参考文献

Gokaraju, Ganga Raju; Kasina, Sudhakar; Somepalli, Venkateswarlu; Gokaraju, Rama Raju; Gokaraju, Venkata Kanaka Ranga Raju; Bhupathiraju, Kiran; Golakoti, Trimurtulu; Sengupta, Krishanu; Alluri, Venkata Krishna Raju Patent: US2013/266563 A1, 2013 ;