El-Shaaer, H. M., Abdel-Aziz, S. A.-G., Hanafy, F. I., Ali, T. E.-S., & El-Fauomy, A. Z. (2011). Synthesis, antifungal activity and semi-empirical AM1-MO calculations of some new 4-oxo-4H-chromene derivatives. European Journal of Chemistry, 2(2), 158–162. https://doi.org/10.5155/eurjchem.2.2.158-162.381