Sentinel Data are also available via the Copernicus Data and Information Access Services DIAS through several.
We apologize for the inconvenience caused.
Due to several copyright infringement issues on Sci-Hub, the repository become inaccessible.
The Sci-Hub project, running from 5th September 2011, is challenging the status quo.
Depending on the person, I tend to use a lot of abbreviations, but for professional work its proper english.
It helps researchers to find top journals for publishing research articles and get an easy manual for research tools.