Open Access
Fig. 4.
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Display of PCN values from download of near-real time index values (red line) on 30 June 2015 (File 2015b from Table 1) and final index values (magenta line) from download 25 Oct 2017.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.