Free Access

Table 1.

Observing campaigns basic information.

# Campaing ID Time (h) Obs. dates
1 25_026 12 2013
2 27_036 40 2014–2015
3 28_081 40 2015
4 30_027 60 2016–2017

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.