1. ELECTROPRODUCTION OF NUCLEON RESONANCES F. FOSTER IN"BARYON 1980,PROC.TORONTO CONF.",P.79 2.4.1
2. RECENT PION PHOTOPRODUCTION AND DEUTERON PHOTO-DISSOCIATION EXPERIMENTS R. KAJIKAWA IN"BARYON 1980,PROC. TORONTO CONF.",P.43;ED.N. ISGUR 2.4.1
3. THE GLASGOW GAMMA,N,N* AND GAMMA,N,DELTA PARTIAL WAVE ANALYSIS R.L. CRAWFORD IN"BARYON 1980,PROC.TORONTO CONF.",p.107 2.4.1
4. REVIEW OF PARTICLE PROPERTIES C. BRICMAN ET AL.CERN REPRINT=R.L. KELLY ET AL.:REV.MOD. 2.4.1
5. PION-NUCLEON PARTIAL WAVE AMPLITUDES R.E. CUTKOSKY, C.P. FORSYTH, R.E. HENDRICK, R.L. KELLY:PHYS.REV.D20(1979)2839 2.1.9; 2.4.1