TY  - JOUR
AU  - G. S. Makanin
TI  - The problem of solvability of equations in a free semigroup
JO  - Doklady Akademii Nauk
PY  - 1977
SP  - 287
EP  - 290
VL  - 233
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1977_233_2_a6/
LA  - ru
ID  - DAN_1977_233_2_a6
ER  -