TY  - BOOK
AU  - Bannai E
AU  -  Ito T
TI  - Algebraic combinatories I: Association schemes
T2  - Mathematical lecture note series
U1  - B217, M4 
PY  - 1984///
CY  - California
PB  - Benjamin         
KW  -  Combination
KW  - Permutation
ER  -