TY  - JOUR
AU  - L. M. Lerman
AU  - Ya. L. Umanskii
TI  - Classification of four-dimensional integrable Hamiltonian systems and Poisson actions of $\mathbb R^2$ in extended neighbourhoods of simple singular points. III.~Realization
JO  - Sbornik. Mathematics
PY  - 1995
SP  - 1477
EP  - 1491
VL  - 186
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1995_186_10_a5/
LA  - en
ID  - SM_1995_186_10_a5
ER  -