@Article{Jaoua-Schmidt-1999,
  author = 	 {Ali Jaoua and Gunther Schmidt},
  title = 	 {Relational methods in computer science: Introduction},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {131--133}
}

@Article{Moeller-1999,
  author = 	 {Bernhard M{\"o}ller},
  title = 	 {Calculating with acyclic and cyclic lists},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {135--154}
}

@Article{Berghammer-1999,
  author = 	 {Rudolf Berghammer},
  title = 	 {Combining relational calculus and the Dijkstra-Gries method for deriving
> relational programs},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {155--171}
}

@Article{Marx-1999,
  author = 	 {Maarten Marx},
  title = 	 {Relation algebras can tile},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {173--191}
}

@Article{Schindler-Kempf-1999,
  author = 	 {Claudia Schindler and Peter Kempf},
  title = 	 {Towards a formal framework for heterogeneous relation algebra},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {193--203}
}

@Article{He-Hoare-1999,
  author = 	 {HE, Jifeng and C.A.R. Hoare},
  title = 	 {Linking theories in probabilistic programming},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {205--218}
}

@Article{BenYahia-Ounalli-Jaoua-1999,
  author = 	 {S. Ben Yahia and H. Ounalli and Ali Jaoua},
  title = 	 {An extension of classical functional dependency:
                  dynamic fuzzy functional dependency},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {219--234}
}

@Article{Kawahara-Furusawa-Mori-1999,
  author = 	 {Yasuo Kawahara and Hitoshi Furusawa and Masao Mori},
  title = 	 {Categorical representation theorems of fuzzy relations},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {235--251}
}

@Article{Kahl-1999d,
  author = 	 {Wolfram Kahl},
  title = 	 {Relational Matching for Graphical Calculi of Relations},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {253--273}
}

@Article{Desharnais-1999,
  author = 	 {Jules Desharnais},
  title = 	 {Monomorphic characterization of $n$-ary direct products},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {275--288}
}

@Article{Mizoguchi-1999,
  author = 	 {Yoshihiro Mizoguchi},
  title = 	 {Properties of graphs preserved by relational graph rewritings},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {289--299}
}

@Article{Winter-1999,
  author = 	 {Michael Winter},
  title = 	 {A relation algebraic approach to interaction categories},
  journal = 	 {Information Sciences},
  year = 	 {1999},
  volume = 	 {119},
  number = 	 {3--4},
  month = 	 DEC,
  pages = 	 {301--314}
}