H. Katea, A. Synthesis , Characterization , Antimicrobial New 2,2’-[(1E,2E)-Ethane-1,2-diylidenedi(2E)hydrazin-1-Yl-2-ylidene]bis (5-Methyl-1,3,4-Oxadiazole) and Their Transition Metal Complexes. jsci 1, 6, 1-18.