@article{FloSul:03,
  journal = {Fuzzy Sets and Systems},
  volume = {138},
  title = {On a class of residuated semilattice monoids},
  year = {2003},
  fjournal = {Fuzzy Sets and Systems. An International Journal in Information
              Science and Engineering},
  pages = {149--176},
  number = {1},
  author = {Flondor, P. and Sularia, M.},
}