%0 Journal Article %A O. Sh. Karshiboev %T Periodic Gibbs measures for the~three-state SOS model on a~Cayley tree with a~translation-invariant external field %J Teoretičeskaâ i matematičeskaâ fizika %D 2022 %P 448-456 %V 212 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2022_212_3_a8/ %G ru %F TMF_2022_212_3_a8