[Great challenges for the editorial world: where went our pleasure in reading? May we photocopy indiscriminately?].
D000293:Adolescent; D000294:Adolescent Behavior; D002648:Child; D002652:Child Behavior; D003308:Copying Processes / Q000592:standards*; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D011643:Publishing / Q000592:standards*; D011932:Reading; D013690:Television