1, 9th International Symposium on Earthworm Ecology
2, The 8th International Symposium on Earthworm Ecology
https://www.eko.uj.edu.pl/isee8/
3, Fourth International Oligochaete Taxonomy Meeting (4th IOTM)
Turkey
April 20th to 24th, 2009
https://4thiotm.tomas-pavlicek-biologie.net/index.php
4, 5th International Oligochaete Taxonomy Meeting
April 11th to April 15th, 2011
