• Desmedt, L.K., et al.: Arzneim.-Forsch., 25, 1408 (1975)
• Nihard, P., et al.: Angiology, 33, 37 (1975)
• Godfraind, T., et al.: Eur. J. Pharmacol., 53, 273 (1975)
• Holmes, B., et al.: Drugs, 27, 6 (1975)
• Ger. Pat., 1972, 2 220 242; CA, 78, 29815r, (synth)
• Martindale, The Extra Pharmacopoeia, 30th edn., Pharmaceutical Press, 1993, 939
• Marini, D. et al., Boll. Chim. Farm., 1984, 123, 133, (struct, uv, ir)
• Holmes, B. et al., Drugs, 1984, 29, 6, (rev, pharmacol)
• Schmidt, R. et al., J. Cardiovasc. Pharmacol., (Suppl. 8), 1991, 18, S27, (rev)
• Amery, W.K. et al., Drugs Exp. Clin. Res., 1981, 7, 1, (pharmacol)
• Negwer, M., Organic-Chemical Drugs and their Synonyms, 6th edn., Akademie-Verlag, 1987, 7382, (synonyms)
• Xiang, M. et al., CA, 1985, 102, 78835, (synth)
• Lewis, R.J., Sax's Dangerous Properties of Industrial Materials, 8th edn., Van Nostrand Reinhold, 1992, FDD080