TY - JOUR AU - O. Sh. Karshiboev TI - Periodic Gibbs measures for the three-state SOS model on a Cayley tree with a translation-invariant external field JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2022 SP - 448 EP - 456 VL - 212 IS - 3 UR - http://geodesic.mathdoc.fr/item/TMF_2022_212_3_a8/ LA - ru ID - TMF_2022_212_3_a8 ER -