TY  - BOOK
AU  - International conference on symmetry and perturbation theory (Sardinia
AU  - Bambusi, Dario, ed.
AU  - Gaeta, Giuseppe, ed.
AU  - Cadoni, Mariano, ed.
TI  - Symmetry and perturbation theory
SN  - 9810247931
U1  - 515.35 
PY  - 2001///
CY  - New Jersey
PB  - World Scientific Publishing
ER  -