@inproceedings{Larssonetal:09,
    author = "Larsson, Roger and Sjanic, Zoran and Enqvist, Martin and Ljung, Lennart",
    title = "Direct prediction-error identification of unstable nonlinear systems applied to flight test data",
    year = "2009",
    month = Jul,
    address = "Saint-Malo, France",
    URL = "http://www.control.isy.liu.se/publications/doc?id=2229",
    booktitle = "Proceedings of the 15th IFAC Symposium on System Identification",
    pages = "144-149",
}