What the Dickens, a minced oath, with 'Dickens' standing for devil
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Working Time Directive, a collection of regulations concerning hours of work
Trials were carried out between 1976 and 1980 and were successfully completed at the Pionierschule (Army School for Engineers and Construction) in Munich (now in Ingolstadt) and at Bundeswehr Engineers Equipment an Fuel Transportation Systems Test Center (ErprSt 51/now WTD 51), Koblenz.