TY  - JOUR
AU  - B. G. Averbukh
TI  - Formalization of the notion of a ``number system''
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1999
SP  - 254
EP  - 255
VL  - 54
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1999_54_1_a10/
LA  - en
ID  - RM_1999_54_1_a10
ER  -