@phdthesis{
    Valpola2000,
    author = "Valpola, Harri",
    school = "Helsinki University of Technology, Laboratory of Computer in Information Science",
    title = "Bayesian Ensemble Learning for Nonlinear Factor Analysis",
    series = "Acta Polytechnica Scandinavica. Mathematics and Computing Series No. 108",
    address = "Espoo, Finland",
    flags = "",
    year = "2000",
    owner = "MM"
}