. . . . . . . "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" . "CqnZFwA/2RN6k8HUVeb6aWHehfzxuoK2XcgeNhbF/mSnXI5cJ3yLjjNGyShptYcVGKYk23tNG+H3rkNr4Yjw8GaOOQWQz42XFBnc6CnzUbIdkoAOQVwvIo9sHT9jeIZ5umuoztQgrP4kDZgB6Abd2kjkva4TQZQcufs4eyV4unY=" . . "2022-01-15T19:21:30.654+01:00"^^ . . . . . . . .