TY  - JOUR
AU  - A. A. Nikitin
TI  - Homomorphisms of freely generated projective planes
JO  - Algebra i logika
PY  - 1981
SP  - 419
EP  - 426
VL  - 20
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1981_20_4_a3/
LA  - ru
ID  - AL_1981_20_4_a3
ER  -