Here is an Open Access ProblemNDT.net has permission from the publisher (European Commission Joint Research Centre) to publish this conference series. Unfortunately the EC-JRC in Petten does not ask authors for third party permission, so we have
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to ask each author for permission individually. That is a lot of bureaucracy and it is not possible to get in contact with all authors.
If authors have the chance to speak to the conference committee we would be pleased if you could make the suggestion for forthcoming conferences for the organizer to ask all authors for third party permission during the submission process.>