relation: http://acta.bibl.u-szeged.hu/73650/ title: New class of practically solvable systems of difference equations of hyperbolic-cotangent-type creator: Stević Stevo date: 2020 type: Folyóirat type: NonPeerReviewed format: full language: hu identifier: http://acta.bibl.u-szeged.hu/73650/1/ejqtde_2020_089.pdf identifier: Stević Stevo: New class of practically solvable systems of difference equations of hyperbolic-cotangent-type. (2020) language: eng