Toldy
Acta Chimica Academiae Scientiarum Hungaricae, 1958 , vol. 16, p. 411,414
Full Text Show Details
Camerino et al.
Gazzetta Chimica Italiana, 1953 , vol. 83, p. 795,799
Full Text Show Details
Neher et al.
Helvetica Chimica Acta, 1958 , vol. 41, p. 1667,1691
Helvetica Chimica Acta, 1959 , vol. 42, p. 132,149

Ercoli; de Ruggieri
Gazzetta Chimica Italiana, 1954 , vol. 84, p. 479,487

Pharmaceutical Chemistry Journal, , vol. 26, # 2 p. 177 - 182
Khimiko-Farmatsevticheskii Zhurnal, , vol. 26, # 2 p. 64 - 68