参考文献

Sashikanth, Suthrapu; Raju, Veeramalla; Somaiah, Sripathi; Rao, Peddisrinivasa; Reddy, Karnativenugopal Synthesis (Germany), 2013 , vol. 45, # 5 art. no. SS-2012-N0828-OP, p. 621 - 624