1. Characterization of carbazoles and polynuclear carbazoles in urban air and in air polluted by coal tar pitch fumes by thin-layer chromatography and spectrophotofluorometry;Bender;Intern. J. Air Water Pollution,1964
2. Optic examination of coumarin. IV. Ultraviolet absorption of various coumarins of plant origin;Bohme;Arch. Pharm,1957
3. Identification and quantitative determination of scopolin and scopoletin in tobacco plants treated with 2,4-dichlorophenoxyacetic acid;Dieterman;Anal. Biochem,1964
4. Engel, C. R., unpublished research.
5. Ultraviolet absorption spectra of coumarin derivatives;Goodwin;Arch. Biochem,1954