Berger H. (2001): Catalogue of ciliate names. 1. Hypotrichs. – Verlag Helmut Berger, Salzburg. viii + 206 pp. (ISBN 3-902147-00-8). More information

Berger H. & Foissner W. (2003): Illustrated guide and ecological notes to ciliate indicator species (Protozoa, Ciliophora) in running waters, lakes, and sewage plants. – Steinberg, Calmano, Klapper & Wilken (eds.): Handbuch Angewandte Limnologie, ecomed Verlag, Landsberg am Lech, 17. Erg.Lfg. 10/03: 160 pp. More information

Berger H. (2006): Monograph of the Urostyloidea (Ciliophora, Hypotricha). – Monographiae Biologicae, 85: i-xvi, 1-1303. More information

Berger H., Heiss E. & Kerzhner I. M. (2001): Removal of homonymy between Urostylidae Dallas, 1851 (Insecta, Heteroptera) and Urostylidae Bütschli, 1889 (Ciliophora, Hypotrichia). – Ann. Naturhist. Mus. Wien, 103B: 301–302. More information

Berger (2003): Redefinition of Holosticha Wrzesniowski, 1877 (Ciliophora, Hypotricha). – Europ. J. Protistol., 39: 373–379. More information

Berger (2004): Amphisiella annulata (Kahl, 1928) Borror, 1972 (Ciliophora: Hypotricha): morphology, notes on morphogenesis, review of literature, and neotypification. – Acta Protozool., 43: 1–14. More information

Berger (2004): Uroleptopsis Kahl, 1932 (Ciliophora: Hypotricha): morphology and cell division of type species, redefinition, and phylogenetic relationships. – Acta Protozool., 43: 99–121. More information

Foissner W., Moon-van der Staay S. Y., Moon-van der Staay G. W., Hackstein J. H. P., Krautgartner W.-D. & Berger H. (2004): Reconciling classical and molecular phylogenies in the stichotrichines (Ciliophora, Spirotrichea), including new sequences from some rare species. – Europ. J. Protistol., 40: 265-281. More information

Berger H. (2001): Catalogue of the names of hypotrichous ciliates. – 11th International Congress of Protozoology (15.–19.07.2001), Salzburg, Austria; p. 72. More information

Berger H. (2003): Uroleptopsis Kahl, 1932 (Ciliophora), a valid pseudokeronopsid genus. – International Conference on the Molecular Biology and Biotechnology of Ciliates and Anaerobic Protozoa in connection with 22nd Annual Meeting of the German Society for Protozoology (04.–08.03.2003), Nijmegen, The Netherlands; p. 49. More information

Berger H. (2003): Redefinition of Holosticha Wrzesniowski, 1877 (Ciliophora, Hypotricha). – 4th European Congress of Protistology and 10th European Conference on Ciliate Biology (31.08.–05.09.2004), San Benedetto, Italy; p. 21. More information

Berger H., Moon-van der Staay S. Y., Moon-van der Staay G. W., Hackstein J. H. P., Krautgartner W.-D. & Foissner W. (2004): Reconciling morphological and 18S rRNA phylogenies in the stichotrichines (Ciliophora, Spirotrichea), including new sequences from some rare species. – 23. Jahrestagung der Deutschen Gesellschaft für Protozoologie (03.03.–06.03.2004), Innsbruck, Austria; p. 5. More information

Schmidt S. L., Bernhard D., Foissner W., Berger H. & Schlegel M. (2004): Phylogenetische Analyse der Spirotrichea (Ciliophora) mittels Gensequenzen der small subunit (ssu) rDNA. – 23. Jahrestagung der Deutschen Gesellschaft für Protozoologie (03.03.–06.03.2004), Innsbruck, Austria; p. 52. More information

Schmidt S. L., Bernhard D., Foissner W., Berger H. & Schlegel M. (2004): Phylogenetic analysis within the class Spirotrichea (Ciliophora) inferred from small subunit (ssu) rDNA. – 97. Jahrestagung der Deutschen Zoologischen Gesellschaft (31.05.–04.06.2004), Rostock, Abstract V-S1.3 on p. 174. More information

The book Berger (2001) is available as permanently updated online-version at my website http://www.protozoology.com (more information).

Kleine Einzeller - ganz groß. Ein Zoologe erfasst eine spezielle Gruppe der Wimpertiere. – Universum. Das schönste Magazin Österreichs, Nr. 6, Juni 2004: page 100.

International Conference on the Molecular Biology and Biotechnology of Ciliates and Anaerobic Protozoa in connection with 22nd Annual Meeting of the German Society for Protozoology (04.–08.03.2003), Nijmegen, The Netherlands (lecture)

4th European Congress of Protistology and 10th European Conference on Ciliate Biology (31.08.–05.09.2003), San Benedetto, Italy (lecture)

23. Jahrestagung der Deutschen Gesellschaft für Protozoologie (03.03.–06.03.2004), Innsbruck, Austria (two lectures; speakers Berger, respectively, Schmidt)

97. Jahrestagung der Deutschen Zoologischen Gesellschaft (31.05.–04.06.2004), Rostock (lecture; speaker Schmidt; Berger not present)

11th International Congress of Protozoology (15.–19.07.2001), Salzburg, Austria (poster)