van Bruggen A. C. (2008). "Studies on the Streptaxidae (Mollusca: Gastropoda Pulmonata) of Malaŵi 10. Description of Gulella systemanaturae, a new species from Dedza Mountain". Zoologische Mededelingen Leiden, 82(2) pp. 9-14. HTMArchived 2014-01-16 at the Wayback Machine, PDF.
web.archive.org
Breure A. S. H., Gittenberger E., Maassen W. J. M. & de Winter A. J. (July 2009) "In and out of Africa: Dr A.C. van Bruggen, keen educator and eminent biologist". Zoologische Mededelingen83: . HTMArchived 2014-01-16 at the Wayback Machine
van Bruggen A. C. (2007). "Studies on the Streptaxidae (Mollusca: Gastropoda Pulmonata) of Malaŵi 9. Description of Gulella streptostelopsis, a new Streptostele-like species of Gulella". Zoologische Mededelingen Leiden 81(1): 2. HTMArchived 2014-01-16 at the Wayback Machine.
van Bruggen A. C. (2008). "Studies on the Streptaxidae (Mollusca: Gastropoda Pulmonata) of Malaŵi 10. Description of Gulella systemanaturae, a new species from Dedza Mountain". Zoologische Mededelingen Leiden, 82(2) pp. 9-14. HTMArchived 2014-01-16 at the Wayback Machine, PDF.
Deeleman-Reinhold C. L. (2009). "Description of lynx spiders of a conopy fogging project in northern Borneo (Araneae: Oxyopidae), with description of a new genus and six new species of Hamataliwa". Zoologische Mededelingen Leiden 83: 673-700. HTMArchived 2014-01-16 at the Wayback Machine.
Feijen H. R. & Feijen C. (2009). Diopsis (Diopsidae) with unusual wing spots: two new species from Malawi with a longer eye span in females than in males". Zoologische Mededelingen Leiden 83: 701–722. HTMArchived 2014-01-16 at the Wayback Machine.
Achterberg C. van (2009). "A new species of the genus Phaenocarpa Foerster from Madagascar (Hymenoptera: Braconidae: Alysiinae)". Zoologische Mededelingen Leiden 83: 667–671. HTMArchived 2014-01-16 at the Wayback Machine.
Maasen W. J. M. (2009). "Remarks on the genus Chloritis in Sulawesi, Indonesia, with the description of two new species (Gastropoda: Pulmonata: Camaenidae)". Zoologische Mededelingen Leiden 83: 595-600. HTMArchived 2014-01-16 at the Wayback Machine
Cole M. L. & Herbert D. G. (2009). "Description of four new species of Gulella Pfeiffer, 1856 from Eastern Cape, South Africa, with additional notes on two poorly known species (Mollusca: Eupulmonata: Streptaxidae)". Zoologische Mededelingen Leiden 83: 547–564–671. HTMArchived 2014-01-16 at the Wayback Machine.
Rowson B., Seddon M. B. & Tattersfield P. (2009). "A new species of Gulella (Pulmonata: Streptaxidae) from montane forest in the Ndoto Mountains, Kenya". Zoologische Mededelingen83HTMArchived 2014-01-16 at the Wayback Machine.
Gittenberger E. & Uit de Weerd D. R. (2009). "Summarizing data on the Inchoatia taxa, including Inchoatia megdova bruggeni subspec.nov. (Gastropoda, Pulmonata, Clausiliidae)". Zoologische Mededelingen Leiden 83: 577-587. HTMArchived 2014-01-16 at the Wayback Machine.
zoologischemededelingen.nl
Breure A. S. H., Gittenberger E., Maassen W. J. M. & de Winter A. J. (July 2009) "In and out of Africa: Dr A.C. van Bruggen, keen educator and eminent biologist". Zoologische Mededelingen83: . HTMArchived 2014-01-16 at the Wayback Machine
van Bruggen A. C. (2007). "Studies on the Streptaxidae (Mollusca: Gastropoda Pulmonata) of Malaŵi 9. Description of Gulella streptostelopsis, a new Streptostele-like species of Gulella". Zoologische Mededelingen Leiden 81(1): 2. HTMArchived 2014-01-16 at the Wayback Machine.
van Bruggen A. C. (2008). "Studies on the Streptaxidae (Mollusca: Gastropoda Pulmonata) of Malaŵi 10. Description of Gulella systemanaturae, a new species from Dedza Mountain". Zoologische Mededelingen Leiden, 82(2) pp. 9-14. HTMArchived 2014-01-16 at the Wayback Machine, PDF.
Deeleman-Reinhold C. L. (2009). "Description of lynx spiders of a conopy fogging project in northern Borneo (Araneae: Oxyopidae), with description of a new genus and six new species of Hamataliwa". Zoologische Mededelingen Leiden 83: 673-700. HTMArchived 2014-01-16 at the Wayback Machine.
Feijen H. R. & Feijen C. (2009). Diopsis (Diopsidae) with unusual wing spots: two new species from Malawi with a longer eye span in females than in males". Zoologische Mededelingen Leiden 83: 701–722. HTMArchived 2014-01-16 at the Wayback Machine.
Achterberg C. van (2009). "A new species of the genus Phaenocarpa Foerster from Madagascar (Hymenoptera: Braconidae: Alysiinae)". Zoologische Mededelingen Leiden 83: 667–671. HTMArchived 2014-01-16 at the Wayback Machine.
Maasen W. J. M. (2009). "Remarks on the genus Chloritis in Sulawesi, Indonesia, with the description of two new species (Gastropoda: Pulmonata: Camaenidae)". Zoologische Mededelingen Leiden 83: 595-600. HTMArchived 2014-01-16 at the Wayback Machine
Cole M. L. & Herbert D. G. (2009). "Description of four new species of Gulella Pfeiffer, 1856 from Eastern Cape, South Africa, with additional notes on two poorly known species (Mollusca: Eupulmonata: Streptaxidae)". Zoologische Mededelingen Leiden 83: 547–564–671. HTMArchived 2014-01-16 at the Wayback Machine.
Rowson B., Seddon M. B. & Tattersfield P. (2009). "A new species of Gulella (Pulmonata: Streptaxidae) from montane forest in the Ndoto Mountains, Kenya". Zoologische Mededelingen83HTMArchived 2014-01-16 at the Wayback Machine.
Gittenberger E. & Uit de Weerd D. R. (2009). "Summarizing data on the Inchoatia taxa, including Inchoatia megdova bruggeni subspec.nov. (Gastropoda, Pulmonata, Clausiliidae)". Zoologische Mededelingen Leiden 83: 577-587. HTMArchived 2014-01-16 at the Wayback Machine.