@CONFERENCE\{IMM2002-01467,
    author       = "P. S. Hansen and S. Brostroem",
    title        = "Tagging the didactic functionality of learning objects",
    year         = "2002",
    month        = "jun",
    keywords     = "Learning objects, didactics, interface symmetry",
    booktitle    = "ED-Media 2002",
    volume       = "",
    series       = "",
    editor       = "P. Barker \& S. Rebelsky",
    publisher    = "AACE",
    organization = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/1467-full.html",
    abstract     = "From a components-in-a-network point of view, the most important issues are: a didactically based typing of the learning objects themselves; the entire design superstructure, into which the learning objects must be fitted; and the symmetry of the interfaces, as seen by each pair of the triad: author, teacher, learner."
}