Amaral Trigo, M. Joaquina S. A.; Oliveira Santos, M. Isabel A., Collection of Czechoslovak Chemical Communications, 1988, vol. 53, # 11B, p. 2787 - 2790
Amaral Trigo, M. Joaquina S. A.; Oliveira Santos, M. Isabel A., Collection of Czechoslovak Chemical Communications, 1988, vol. 53, # 11B, p. 2787 - 2790