TY - JOUR AU - I. Sh. Kalimullin TI - On elementary theories of semilattices of $n$-recursively enumerable degrees with respect to enumerability JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2001 SP - 24 EP - 27 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2001_4_a3/ LA - ru ID - IVM_2001_4_a3 ER -