@article{8519,
  author       = {Kaloshin, Vadim},
  issn         = {0020-9910},
  journal      = {Inventiones mathematicae},
  keywords     = {General Mathematics},
  number       = {3},
  pages        = {451--512},
  publisher    = {Springer Nature},
  title        = {{The existential Hilbert 16-th problem and an estimate for cyclicity of elementary polycycles}},
  doi          = {10.1007/s00222-002-0244-9},
  volume       = {151},
  year         = {2003},
}