1. T. Dubroca, J. Hack, and R.E. Hummel,"Quasiferromagnetism in Semiconductors", Appl. Phys. Let. 88, 182504 (2006)(pdf)


    2. T. Dubroca, J. Hack, and R.E. Hummel, Comment on “Unusual magnetic transitions and nature of magnetic resonance spectra in oxide glasses containing gadolinium”PHYS. REV. B, 74, 026403 (2006)(pdf)


    3. Ferromagnetic Properties of Spark-Processed Photoluminescing Silicon  J. Hack, M. H. Ludwig, W. Geerts, R. E. Hummel (1997)


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