TY  - JOUR
AU  - M. Adler
TI  - On a Trace Functional for Formal Pseudo-Differential Operators and the Symplectic Structure of the Korteweg-Devries Type Equation.
JO  - Inventiones mathematicae
PY  - 1978
SP  - 219
EP  - 248
VL  - 50
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1978__50_142614/
ID  - IM_1978__50_142614
ER  -