[1]Colonge;Rochas[BulletindelaSocieteChimiquedeFrance,1948,p.825]
[1]Colonge;Rochas[BulletindelaSocieteChimiquedeFrance,1948,p.825]
[1]Colonge;Boisde[BulletindelaSocieteChimiquedeFrance,1956,p.1337,1342]
[2]Unterhalt;Joestingmeier[Pharmazie,1996,vol.51,#9,p.641-644]
[1]Bardhan;Sengupta[JournaloftheChemicalSociety,1932,p.2520,2524]