@article{26278,
  author       = {{Ziegler, Martin and Fuchssteiner, Benno}},
  issn         = {{0020-7748}},
  journal      = {{International Journal of Theoretical Physics}},
  pages        = {{693--717}},
  title        = {{{Nonlinear Reformulation of Heisenberg's Dynamics}}},
  doi          = {{10.1007/s10773-005-7048-9}},
  year         = {{2005}},
}

@article{18282,
  author       = {{Ziegler, Martin}},
  issn         = {{0020-7748}},
  journal      = {{International Journal of Theoretical Physics}},
  number       = {{11}},
  pages        = {{2059--2071}},
  title        = {{{Computational Power of Infinite Quantum Parallelism}}},
  doi          = {{10.1007/s10773-005-8984-0}},
  volume       = {{44}},
  year         = {{2005}},
}