TY  - JOUR
AU  - P. E. Alaev
TI  - Constructive and Non-Constructive Infinite Formulas in Computable Structures
JO  - Algebra i logika
PY  - 2003
SP  - 391
EP  - 412
VL  - 42
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_2003_42_4_a0/
LA  - ru
ID  - AL_2003_42_4_a0
ER  -