@TECHREPORT\{IMM1992-02739,
    author       = "H. Bechmann and N. K. Poulsen and E. Hendricks",
    title        = "Adaptive Optimization of the indicated efficiency in spark ignition  engines",
    year         = "1992",
    number       = "18",
    series       = "",
    institution  = "Institute of Mathematical Statistics and Operations Research (IMSOR), The Technical University of Denmark",
    address      = "",
    type         = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/2739-full.html"
}