Mnoucek, K [Polarographic and spectral studies of various derivatives of 4-hydroxycoumarin and chrome]. [electronic resource] - Ceskoslovenska farmacie May 1968 - 173-80 p. digital Publication Type: Journal Article ISSN: 0009-0530 Subjects--Topical Terms: Chromones--analysisCoumarins--analysisMethodsPolarographySpectrophotometryUltraviolet Rays