@article{SM_1971_14_2_a5,
     author = {S. G. Smirnov},
     title = {Smooth knots in a~fibering over a~circumference},
     journal = {Sbornik. Mathematics},
     pages = {252--266},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1971_14_2_a5/}
}