Problems on triangular norms and related operators

@article{Klement2004ProblemsOT,
  title={Problems on triangular norms and related operators},
  author={Erich-Peter Klement and Radko Mesiar and Endre Pap},
  journal={Fuzzy Sets and Systems},
  year={2004},
  volume={145},
  pages={471-479}
}