TY  - JOUR
AU  - S. V. Polin
TI  - An application of topos theory to the investigation of cryptosystems
JO  - Trudy po diskretnoj matematike
PY  - 2006
SP  - 220
EP  - 252
VL  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TDM_2006_9_a11/
LA  - ru
ID  - TDM_2006_9_a11
ER  -