TY  - JOUR
AU  - A. A. Prokop'ev
TI  - Topological invariants of the Hamiltonian system for the $B$-phase of superfluid Helium-3
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1992
SP  - 226
EP  - 227
VL  - 47
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1992_47_4_a16/
LA  - en
ID  - RM_1992_47_4_a16
ER  -