@incollection{Ion:99,
  publisher = {Inforec, Bucharest},
  title = {Pseudo-{MV} algebras as semigroups},
  author = {Ioni{\c{t}}{\u{a}}, C{\u{a}}t{\u{a}}lin},
  year = {1999},
  booktitle = {Information technology (Bucharest, 1999)},
  pages = {983--987},
}