TY  - BOOK
AU  - Okun Lev B
TI  - Relations of particles
T2  - World Scientific lecture notes in physics; 42
SN  - 981020454X
U1  - C9B36, N1 
PY  - 1991///
CY  - Singapore
PB  - World Scientific        
KW  -  Particle physics
KW  - Physics
ER  -