1. Ultraviolet absorption spectra of some polyhydroxyanthraquinones;Birkinshaw;Biochem. J.,1955
2. Organic carbon in Irish pasture soils;Brogan;Irish J. Agric. Res.,1966
3. The separation of some anthraquinone derivatives by thin-layer chromatography;Danilović;J. Chromatogr.,1965
4. Zur Kenntnis der Huminsäuren (III. Mitteilung);Flaig,1951
5. Soils of Co. Wexford;Gardiner;Soil Surv. Bull.,1964