1. Copper enzymes in isolated chloroplasts;Arnon;Plant Physiol.,1949
2. Micronutrient deficiencies in the United States;Berger;J. Agric. Food Chem.,1962
3. Variation in thiocyanate content of radish plants during ontogeny;Chong;J. Am. Soc. Hortic. Sci.,1974
4. Deficiency, toxicity, and accumulation of boron in plants;Eaton;J. Agric. Res.,1944
5. Sulfur compounds in plants;Ettlinger,1968