@article{MZM_1998_64_4_a4,
     author = {S. P. Gorbikov},
     title = {Local singularities of dynamical systems with shock interactions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {531--542},
     publisher = {mathdoc},
     volume = {64},
     number = {4},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1998_64_4_a4/}
}