Old-Catholic Parish Church of St. Peter and St. Paul - Popularly known as the "Paradijskerk." Rotterdam. The building is also home to the Roman Catholic parish of St. Joseph. History, photographs, service schedule, contact information. - http://www.paradijskerk.nl/
Old Catholic Mission Saint Paul - Description of the missionary projects of this group based in Hilversum, the Netherlands. - http://netministries.org/see/churches/ch00549?frame=N