F. F. Abdel-Motaal and M. A.-E. Raslan, “Synthesis and antimicrobial evaluation of some 1,2,4-triazolo[1,5-a]pyridine, pyrimidine sulfonamides and sulfinyl derivatives”, Eur. J. Chem., vol. 5, no. 3, pp. 481–487, Sep. 2014.