1. Importance of non-volatile compounds to the flavour of coffee;Feldman;J. Agric. Fd. Chem.,1967
2. Paper chromatographic detection of major organic acids in fruit juices;Fitelson;J. A.O.A.C.,1969
3. Culture methods and detection of glucanases in suspension cultures of wheat and barley;Gamborg;Can. J. Biochem.,1968
4. Chlorogenic acid content in raw coffee, roast coffee, and coffee extract powders;Lehman;Deut. Lebenson. Reindsch.,1967
5. Physiological important constituents of coffee;Lehman;Ernachr. — Umsch.,1971