Mathew, K. K.; Raman, P. S.; Antharjanam, T. G. Bhargavi, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 4, p. 340 - 342
Mathew, K. K.; Raman, P. S.; Antharjanam, T. G. Bhargavi, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 4, p. 340 - 342