@CONFERENCE\{IMM1997-01692,
    author       = "A. M. Espensen and W. Bergstr{\o}m and H. Madsen and H. A. Nielsen",
    title        = "Implementation of Mini {CHP}",
    year         = "1997",
    booktitle    = "International Symposium on District Heating and Simulation",
    volume       = "",
    series       = "",
    editor       = "\'{O}lafur P\'{e}tur P\'{a}lsson",
    publisher    = "",
    organization = "",
    address      = "Reykjavík, Iceland",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1692-full.html"
}