Hegazy, W. H. (2013) “New lanthanide complexes of 1,1`-bis[(2-thienylmethylidene)hydrazono-1-ethyl]-ferrocene and 1,1`-bis(2,3-dihydro-2-methylbenzo[d]thiazol-2-yl)ferrocene: Synthesis, characterization and antimicrobial properties”, European Journal of Chemistry, 4(3), pp. 255–259. doi: 10.5155/eurjchem.4.3.255-259.833.