TY  - JOUR
AU  - S. V. Pchelintsev
TI  - A free $(-1,1)$-algebra with two generators
JO  - Algebra i logika
PY  - 1974
SP  - 425
EP  - 449
VL  - 13
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1974_13_4_a4/
LA  - ru
ID  - AL_1974_13_4_a4
ER  -