@article{RM_1985_40_3_a11,
     author = {E. M. Gorelik},
     title = {A homotopy classification of shifts of a~closed curve close to itself},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {231--232},
     publisher = {mathdoc},
     volume = {40},
     number = {3},
     year = {1985},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1985_40_3_a11/}
}