TY  - JOUR
AU  - Korec, Ivan
TI  - Definability of arithmetical operations from binary quadratic forms
JO  - Communications in Mathematics
PY  - 1998
SP  - 135
EP  - 144
VL  - 6
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/COMIM_1998_6_1_a15/
LA  - en
ID  - COMIM_1998_6_1_a15
ER  -