M. Ibrahim, M., Al-Refai, M., N. Dawoud, J., Abu-El-Halawa, R., H. Massad, M., Judeh, Z., & F. Ali, B. (2012). Crystal Structure and Density Functional Calculation of (E)-4-Hydroxy-3-methyl-N’- (thiophen-2-ylmethylene)-1,4-dihydroquinoxaline-2-carbohydrazide Radical. Asian Journal of Chemistry, 24(7), 2926–2930. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/9263