@article{DrewniakP07,
  title = {Properties of fuzzy relations powers},
  author = {Józef Drewniak and Barbara Pekala},
  year = {2007},
  url = {http://www.kybernetika.cz/content/2007/2/133},
  researchr = {https://researchr.org/publication/DrewniakP07},
  cites = {0},
  citedby = {0},
  journal = {Kybernetika},
  volume = {43},
  number = {2},
  pages = {133-142},
}