参考文献:
Hapuarachchige, Sudath Montano, Gilbert Ramesh, Chinnasamy Rodriguez, Delany Henson, Lauren H. Williams, Casey C. Kadavakkollu, Samuel Johnson, Dennis L. Shuster, Charles B. Arterburn, Jeffrey B. Journal of the American Chemical Society, 2 , vol. 33, # 7 p. 678 - 679