1. Effect of selected synthetic regulators on Pseudomonas aeruginosa growth in liquid culture;Czerpack;Med. Dosw. Microbiol.,1982
2. Antimicrobial properties of 6,7-dihydroxy‑, 7,8-dihydroxy-, 6-hydroxy- and 8-hydroxycoumarins;Jund;Phytochemistry,1971
3. New coumarin derivatives as antibacterial agents;El-Ansary;Egypt. J. Pharm. Sci.,1992
4. Synthesis, spectra and physiological activity of 7H-pyrano[3,2-c]benzoxazole-7-one;Reddy;J. Ind. Chem. Soc.,1981
5. Synthesis and biological studies of some benzopyrano[2,3-c]pyrazole derivatves;Abd Allah;Il Farmaco,2000