@article{RM_1971_26_5_a14,
     author = {S. G. Smirnov},
     title = {Smooth knots in manifolds of homotopy type $K(\pi,1)$},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {26},
     number = {5},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1971_26_5_a14/}
}