@article{ZNSL_1995_223_a7,
     author = {M. I. Gordin},
     title = {Some remarks on homoclinic groups of hyperbolic toral automorphisms},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {140--147},
     publisher = {mathdoc},
     volume = {223},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1995_223_a7/}
}