1. Bishop, P. D., Makus, D., Pearce, G., Ryan, C. A., 1981: Proteinase inhibitor-inducing factor activity in tomato leaves resides in oligosaccharides enzymically released from cell walls. Proc. Natl. Acad. Sci. (U. S. A.) 78, 3536–3540.
2. Bishop, P. D., Pearce, G., Bryant, J., Ryan, C. A., 1984: Isolation and characterization of the proteinase inhibitor induction factor and a PIIF-active oligosaccharide fragments, in review.
3. Boller, T., Gehri, A., Mauch, F., Vögeli, V., 1983: Chitinase in bean leaves: induction by ethylene, purification, properties and possible function. Planta 157, 22–31.
4. Boller, T., 1982: Enzymatic equipment of plant vacuoles. Physical Vég. 20, 247–257.
5. Brown, W., Ryan, C. A. (in review): Isolation and characterization of a wound-induced trypsin inhibitor from alfalfa leaves.