TY  - JOUR
AU  - M. V. Shamolin
TI  - Spatial topographical systems of Poincar\'e and comparison systems
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1997
SP  - 621
EP  - 622
VL  - 52
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1997_52_3_a11/
LA  - en
ID  - RM_1997_52_3_a11
ER  -