@article{ZNSL_2001_279_a14,
     author = {A. L. Fel'shtyn},
     title = {The {Reidemeister} number of any automorphism of a {Gromov} hyperbolic group is infinite},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {229--240},
     publisher = {mathdoc},
     volume = {279},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2001_279_a14/}
}