@article{RM_1979_34_6_a28,
     author = {A. V. Shokurov},
     title = {Topological applications of~the~apparatus of~formal diffeomorphisms of~the~line},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {213--219},
     publisher = {mathdoc},
     volume = {34},
     number = {6},
     year = {1979},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1979_34_6_a28/}
}