Check out the presenters listed below.
Przemyslaw Staniszewski, Pretius
Team Leader of APEX Department at Pretius (Poland) with over 9 years of experience as Oracle Application Express developer, PL/SQL developer and database architect.
Founder and project manager of Translate APEX (www.translate-apex.com) - international project created to collect translations of Oracle Application Express.
Participant of many APEX and DB conferences, speaker at APEX World in Rotterdam, APEX Day in Prague, Warsaw IT Days and ODTUG Webinars.