Pervez,Humayun; Onyiriuka, Samuel O.; Rees, Lilias; Rooney, James R.; Suckling, Colin J.
Tetrahedron, 1988 , vol. 44, # 14 p. 4555 - 4568

Bonilha, Joao B. S.; Chiericato, Glaico,; Martins-Franchetti, Sandra M.; Ribaldo, Edson J.; Quina, Frank H.
Journal of Physical Chemistry, 1982 , vol. 86, # 25 p. 4941 - 4947