@article{AnishchenkoVadivasovaKopeikinetal.2003,
  author    = {Vadim S. Anishchenko and T. E. Vadivasova and A. S. Kopeikin and G. I. Strelkova and J{\"u}rgen Kurths},
  title     = {Spectral and correlation analysis of spiral chaos},
  year      = {2003},
}