SYMBOLS AND REFERENTS
http://www.clearing.org/archive?/homer/proof30.memo
 
SYMBOLS AND REFERENTS II
http://www.clearing.org/archive?/homer/proof31.memo
 
SYMBOLS AND REFERENTS III
http://www.clearing.org/archive?/homer/proof35.memo 
 
SYMBOLS AND REFERENTS IV
http://www.clearing.org/archive?/homer/adore308.memo 
 
SYMBOLS and REFERENTS
http://www.clearing.org/archive?/homer/lcc-srm 
 
SYMBOLS AND REFERENTS
http://www.clearing.org/archive?/homer/lcc1