Sayed, A. R., Al-Shihry, S. S. and Gomaa, M. A.-M. (2014) “Synthesis and characterization of novel heterocycles based on tetrazine and hydrazonoyl halides”, European Journal of Chemistry, 5(2), pp. 267–271. doi: 10.5155/eurjchem.5.2.267-271.913.