@article{TM_1995_209_a1,
     author = {V. I. Arnol'd},
     title = {Invariants and perestroikas of plane fronts},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {14--64},
     publisher = {mathdoc},
     volume = {209},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1995_209_a1/}
}