Since its creation in 1970 until 1996, the International Nuclear Information System (INIS) collected and converted to microfiche over 312 000 non-conventional literature (NCL) reports received from IAEA member states and international organizations. The microfiche collection contains over 1 million items, with an estimated total of 25 million pages of full-texts. In 1997, the INIS Secretariat replaced the microfiche-based production system with an imaging system to process and to disseminate all NCL documents in electronic...

Conformity to facts, accuracy, habitual truthfulness, authenticity, information source reliability, and security have become important concerns. Trustworthiness of news and information, and of grey and other literature types has become of interest to the public, as well as to many information science and technology researchers. Starting with a definition of grey literature, and continuing with white, dark and grey data, this paper concentrates mainly on grey data as an emerging grey literature data type and...