@article{czirok1993existence,
  title={On the Existence of Well Defined Singularities in Multifractals},
  author={Czirok, Andras and Szepfalusy, Peter and Vicsek, Tamas},
  journal={Fractals},
  volume={1},
  number={02},
  pages={199--204},
  year={1993},
  publisher={World Scientific Publishing Company}
}