1. BIOGENESIS OF THE CELL WALL
2. Lemon-peel pectin;Aspinall;3. Fractionation of pectic acids from lemon-peel and lucerne. Can. J. Chem,1970
3. Branfoot , M.A. 1929 A critical and historical study of the pectic substances of plants
4. Relation between the solubilization of pectin and the fate of organic acids during maturation of apples;Doesburg;J. Sci. Food Agric,1957
5. Cellulase in tomato fruits;Hall;Nature,1963