@article{IVM_2005_10_a5,
     author = {G. A. Sviridyuk and I. K. Trineeva},
     title = {A {Whitney} fold in the phase space of the {Hoff} equation},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {54--60},
     publisher = {mathdoc},
     number = {10},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2005_10_a5/}
}