@article{ZaksRosenblumPikovskijetal.1997,
  author    = {Michael A. Zaks and Michael Rosenblum and Arkadij Pikovskij and Grigory V. Osipov and J{\"u}rgen Kurths},
  title     = {Phase synchronization of chaotic oscillations in terms of periodic orbits},
  year      = {1997},
}