TY  - GEN
AU  - Hirs, C.H.W
AU  - Tenia sheff, Serge N
TI  - Enzyme structure Part.I
T2  - Methods in enzymology
SN  - 0121819485
U1  - 574. 1925 MET.48 
CY  - New York, Academic press
KW  - Enzymes
ER  -