@inproceedings {Aut01,
    author = "Giavitto, Jean-Louis and Michel, Olivier",
    title = "MGS: a Rule-Based Programming Language for Complex Objects and Collections",
    booktitle = "Electronic Notes in Theoretical Computer Science",
    volume = "59",
    issue = "4",
    publisher = "Elsevier Science Publishers",
    editor = "Mark van den Brand and Rakesh Verma",
    year = "2001"
}