1St. Petersburg Department of the Steklov Mathematical Institute, Russian Acad. Sci., Fontanka 27, St. Petersburg, 191011, Russia2Department of Mathematics, Gothenburg University, S–41296 Goteborg, Sweden
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Twisted Hopf algebra slξ(2) gives rise to a deformation of the Yangian Y(sl(2)). The corresponding deformations of the integrable XXX-spin chain and the Gaudin model are discussed.