- 8th International Conference on Functional Equations and Inequalities, ZŁOCKIE, Poland, September 10-15, 2001
- 9th International Conference on Functional Equations and Inequalities, ZŁOCKIE, Poland, September 7-13, 2003
- 10th International Conference on Functional Equations and Inequalities, BĘDLEWO, Poland, September 11-17, 2005
- 11th International Conference on Functional Equations and Inequalities, BĘDLEWO, Poland, September 17-23, 2006
- 12th International Conference on Functional Equations and Inequalities, BĘDLEWO, Poland, September 7-14, 2008
- 13th International Conference on Functional Equations and Inequalities, MAŁE CICHE, Poland, September 13-19, 2009