@ARTICLE\{IMM2011-06202,
    author       = "H. True",
    title        = "Die berechnung der kritischen geschwindigkeit eines eisenbahnfahrzeuges: Die richtige, die falsche und die zufallsmethode",
    year         = "2011",
    pages        = "162-169",
    journal      = "ZEVrail - Zeitschrift für das gesamte system bahn",
    volume       = "135",
    editor       = "",
    number       = "",
    publisher    = "",
    note         = "In German",
    url          = "http://www.imm.dtu.dk/English.aspx",
    abstract     = "In recent years several authors have proposed, {''}easier{''} numerical methods to find the critical speed in railway dynamical problems. Actually the methods do function in some cases, but in most cases it is really a gamble. In this presentation the methods will be discussed and the pros and contras commented. We shall also address the questions when a linearisation is allowed and the curious fact that the hunting motion is more robust than the ideal stationary state motion in the track. Concepts such as {''}multiple attractors{'',} {''}permitted linearisation{'',} {''}subcritical and supercritical bifurcations{'',} {''}the danger of running at supercritical speeds{''} and {''}chaotic motion{'',} will be addressed."
}