1. For a list of the known hadrons and their properties, and references to the original literature, see the survey of the Particle Data Group M. Roos et al.: Phys. Lett.111B, 1 (1982). More recent data have been given by E. Bloom: XXI Conf. on High Energy Physics (Paris, 1982). See also G. Bellini et al.: Phys. Rev. Lett.48, 1697 (1982)
2. For a review with references, see, e.g. T. Appelquist, R.M. Barnett, K. Lane: Ann. Rev. Nucl. Part. Sci.28, 387 (1978)
3. G. Morpurgo: Physics2, 95 (1965)
4. R.K. Bhaduri, L.E. Cohler, Y. Nogami: Nuovo Cimento65A, 375 (1981); S. Ono: Rep. PITHA 82/05; S. Ono, F. Schöberl: Phys. Lett.118B, 419 (1982)
5. H. Crater, P. Van Alstine: Phys. Lett.100B, 166 (1981)