. . . . . . . . . "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" . "Sfdq6sfbGWirkmtO5MWaf9uviNVwOV0f377vnQWKDTh/miJs24uxyAox01nm8eHkTu8j5FssAO7miRbfHMksGAJKfff84fJSoZYXC+ucB8b+jNtDqgvbB0gTyuIrQoEHF2y+k6NUDusIi0GD7GeXT3tZI8Pz1ixh2sQm97vgYXA=" . . "2023-06-09T09:27:12.721+02:00"^^ . . . . . . . . . .