https://effostconference.com/speaker/joanna-stadnik/ 2026-08-18T09:56:08+00:00 https://effostconference.com/speaker/henryk-jelen/ 2026-08-11T12:34:34+00:00 https://effostconference.com/speaker/akos-bernard-jozwiak/ 2026-07-01T12:50:00+00:00 https://effostconference.com/speaker/alejandro-marangoni/ 2026-06-22T07:22:04+00:00 https://effostconference.com/speaker/bert-popping/ 2026-06-11T09:42:30+00:00 https://effostconference.com/speaker/veronika-somoza/ 2026-05-28T11:59:31+00:00