@inproceedings{conf/mfcs/GottlobLV95,
  title = "Second Order Logic and the Weak Exponential Hierarchies",
  author = "Georg Gottlob and Nicola Leone and Helmut Veith",
  year = "1995",
  booktitle = "{Mathematical Foundations of Computer Science 1995, 20th International Symposium, MFCS'95, Prague, Czech Republic, August 28 - September 1, 1995, Proceedings}",
  editor = "Jir\'{\i} Wiedermann and Petr H{\'a}jek",
  isbn = "3-540-60246-1",
  pages = "66-81",
  publisher = "Springer",
  series = "Lecture Notes in Computer Science",
  volume = "969",
}