@MISC\{IMM2009-05943,
    author       = "M. M{\o}rup",
    title        = "SR-clustering algorithm",
    year         = "2009",
    publisher    = "",
    address      = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/5943-full.html",
    abstract     = "Simplicial relaxation of the hard clustering problem for k-means and modularity/hamiltonian optimization, see M. M{\o}rup and L.K. Hansen {''}Exact Relaxation of Clustering''"
}