1. Toxic amino acids in the Leguminosae;Bell,1972
2. Amino acids of natural origin;Bell,1973
3. ‘Uncommon’ amino acids in plants;Bell;FEBS Lett.,1976
4. The possible significance of uncommon amino acids in plant-vertebrate, plant-insect, and plant-plant relations;Bell;Pontif. Acad. Sci. Scr. Varia,1977
5. Non-protein amino acids in plants;Bell,1980