Table 1.

Selected time intervals analyzed in the present study.

Period From To
A 01 July 2000 01 August 2000
B 10 August 2005 10 September 2005
C 01 February 2015 01 May 2015

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.

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