TY  - JOUR
AU  - Yu. A. Ignatov
TI  - Roots of unity as nonfree points of the complex plane
JO  - Matematičeskie zametki
PY  - 1980
SP  - 825
EP  - 827
VL  - 27
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1980_27_5_a12/
LA  - ru
ID  - MZM_1980_27_5_a12
ER  -