Ragab, F. A. E. - F., N. M. Eid, G. S. Hassan, and Y. M. Nissan,
"Synthesis and anticonvulsant activity of new 4-thiazolidinones and 2-thioxo-4-imidazolidinones attached to 4-oxo and thioxobenzopyranes",
Bull. Fac. Pharm. Cairo Univ, vol. 44, issue 3, pp. 83-93, 2006.
]