1. For general reviews of QCD see J. C. Collins and D. E. Soper, Ann. Rev. Nucl. Part. Sci., 31, 383 (1987)
2. E. Reya, Phys. Rept. 69, 195 (1981)
3. A.H. Mueller, Lectures on perturbative QCD given at the Theoretical Advanced Study Inst., New Haven, 1985
4. Quarks and Gluons in Particle and Nuclei, Proc. of the UCSB Institute for Theoretical Physics Workshop on Nuclear Chromodynamics, eds., S.J. Brodsky and E. Moniz (World Scientific, 1985).
5. For a detailed discussion of exclusive processes in QCD, see S. J. Brodsky and G. P. Lepage, SLAC-PUB-4947 (1989), published in Perturbative Quantum Chromodynamics, World Scientific, edited by A. Mueller, 1989.