@article{MAT_1968_12_6_a6,
     author = {Ch. C. Pugh},
     title = {The closing lemma},
     journal = {Matematika},
     pages = {80--135},
     year = {1968},
     volume = {12},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1968_12_6_a6/}
}