参考文献

Reddy, Jambula Mukunda; Kumar, Kotagiri Vijay; Raju, Veeramalla; Bhaskar, Bolguddu Vijay; Himabindu, Vurumidi; Bhattacharya, Apurba; Sundaram, Venkatram; Banerjee, Rahul; Reddy, Ghanta Mahesh; Bandichhor, Rakeshwar Synthetic Communications, 2008 , vol. 38, # 13 p. 2138 - 2149