@article{Ciu:07c,
  journal = {Annals of University of Craiova, Math. Comp. Sci. Ser. },
  volume = {34},
  title = {On perfect pseudo-BCK algebras with pseudo-product},
  fjournal = {Analele Universit\u a\c tii din Craiova. Seria Matematic\u
              a-Informatic\u a},
  year = {2007},
  pages = {29-42},
  number = {1},
  author = {Ciungu, Lavinia Corina},
}