This filter allows results reduction according to immediate full text access possibilities. YES marks the data of documents with public and further obstructions free access to the full texts. NO value appears with data whose full texts access requires special claim, registration or face-to-face visit of the institution.
NRGL provides central access to information on grey literature produced in the Czech Republic in the fields of science, research and education. You can find more information about grey literature and NRGL at service web
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