. . . . . . . . . "DDI-Codebook is a more light-weight version of the standard, intended primarily to document simple survey data. Originally DTD-based, DDI-C is also available as an XML Schema." . "DDI-Codebook|Data Documentation Initiative - Codebook" . . . "RSA" . "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCtpcftn7kbe6toJbOTDQaCcCssEFSWqt6J4rZ02w+TfY7/eIOgJZYOlpL6G3AzO2RNmVYWRPSlMiykaFuaRuBitvk1GKfGdprfZbvXwmeOxpqCTRBQX9EnFyQyd+Ra/ajfw/UsG8skeu1xnUEpnQbpgbQYc/fvhJNN0UwEc77mOwIDAQAB" . "UtVZzW8ZnaKnYVWSZNFpITBerLEikD5gkUvYLcfkM/KufBBtAf+v/+xubDv81XgHA/OPw9UQTbC45JLs0KSoefZ3T5cFGiZZVHorJ/P11Cx1sMWsmCifGcoQ5v3LQKnJD63HgoJaj47LM2+l/HSJOLbobtv3M4j2fju05ibeWDY=" . . "2022-01-23T15:08:33.736+01:00"^^ . . . . . . . .