[1]Архивирано 2017-10-11 на сајту Wayback Machine Holm, Hans J. (to appear march, 2008): The Distribution of Data in Word Lists and its Impact on the Subgrouping of Languages. In: Christine Preisach, Hans Burkhardt, Lars Schmidt-Thieme, Reinhold Decker (eds.): Data Analysis, Machine Learning, and Applications. Proc. of the 31st Annual Conference of the German Classification Society (GfKl), University of Freiburg, March 7–9, 2007. Springer-Verlag, Heidelberg-Berlin
[2]Архивирано 2019-09-05 на сајту Wayback Machine A possible Homeland of the Indo-European Languages And their Migrations in the Light of the Separation Level Recovery (SLRD) Method - Hans J. Holm
[1]Архивирано 2017-10-11 на сајту Wayback Machine Holm, Hans J. (to appear march, 2008): The Distribution of Data in Word Lists and its Impact on the Subgrouping of Languages. In: Christine Preisach, Hans Burkhardt, Lars Schmidt-Thieme, Reinhold Decker (eds.): Data Analysis, Machine Learning, and Applications. Proc. of the 31st Annual Conference of the German Classification Society (GfKl), University of Freiburg, March 7–9, 2007. Springer-Verlag, Heidelberg-Berlin
[2]Архивирано 2019-09-05 на сајту Wayback Machine A possible Homeland of the Indo-European Languages And their Migrations in the Light of the Separation Level Recovery (SLRD) Method - Hans J. Holm