@article{RM_1990_45_3_a10,
     author = {E. B. Vul and K. M. Khanin},
     title = {Homeomorphisms of the circle with singularities of ``break'' type},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {229--230},
     publisher = {mathdoc},
     volume = {45},
     number = {3},
     year = {1990},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1990_45_3_a10/}
}