TY  - JOUR
AU  - E. B. Katsov
TI  - The~category property of the theory of polygons
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1987
SP  - 221
VL  - 42
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1987_42_3_a12/
LA  - en
ID  - RM_1987_42_3_a12
ER  -