@article{702301,
     title = {Generic bifurcations of vector fields with a singularity of codimension 3},
     booktitle = {Equadiff 5},
     series = {GDML\_Books},
     publisher = {BSB B.G. Teubner Verlagsgesellschaft},
     address = {Leipzig},
     year = {1982},
     pages = {260-263},
     zbl = {0527.58026},
     url = {http://dml.mathdoc.fr/item/702301}
}

Medveď, Milan. Generic bifurcations of vector fields with a singularity of codimension 3, dans Equadiff 5, GDML_Books,  (1982), pp. 260-263. http://gdmltest.u-ga.fr/item/702301/