@ARTICLE\{IMM2005-04201,
    author       = "R. V. Overgaard and N. Jonsson and C. W. Tornoe and H. Madsen",
    title        = "Non-linear mixed-effects models with stochastic differential equations: implementation of an estimation algorithm",
    year         = "2005",
    pages        = "85-107",
    journal      = "Journal of Pharmacokinetics and Pharmacodynamics",
    volume       = "32",
    editor       = "",
    number       = "1",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/4201-full.html"
}