Szacoń, E. et al. 2012. Synthesis of new derivatives of 1-[1-(2-pyridyl)-imidazolidine-2-ylidene]-3-aryl(arylakyl)ureas. Current Issues in Pharmacy and Medical Sciences. 25, 4 (Dec. 2012), 449–451. DOI:https://doi.org/10.12923/j.2084-980X/25.4/a.24.