Porwal, Madhu; Sharma, Savita; Mehta, B. K.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1988 , vol. <B> 27, # 1-12 p. 281 - 282

Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, , vol. 168, p. 945
Bulletin de la Societe Chimique de France, , vol. <4>25, p. 474

Suyama, Takayuki; Ozawa, Nobuyuki; Suzuki, Noriyuki
Bulletin of the Chemical Society of Japan, 1994 , vol. 67, # 1 p. 307 - 308

Guha; Ramaswami
Journal of the Indian Chemical Society, 1934 , vol. 11, p. 820