1. 1. E. Leader, Spin in Particle Physics (Cambridge University Press, Cambridge, 2001).
2. 2. R. C. Fernow and A. D. Krisch, Ann. Rev. Nucl. Part. Sci. 31, 107–144 (1981).
3. 3. M. V. Tokarev for the STAR collaboration, Hard Probes and Spin Physics at STAR, presented at the International Workshop Advanced Studies Institute - Symmetries and Spin, July 12–19, 2003, Prague, Czech Republic. Preprint E1-2003-202 of the Joint Institute for Nuclear Research, Dubna, 2003. Submitted to Czech. J. Phys.
4. 4. E. Leader, Ref. 1. pp. 413–414.
5. 5. F. Lurçat, Phys. Rev. 173, 1461–1473 (1968).