We provide a brief investigation of the Estonian–German scientific collaboration in terms of quantity and quality of the scientific output and impact based on the Web of Science (WoS) and the Essential Science Indicators (ESI) of Thomson Reuters. An overview of the overall scientific productivity of Estonia and a ranking of the countries of cooperation is given. The most active affiliations and research fields involved into the cooperation of the two countries are identified. We analyse in particular the development of the output (i.e. the number of joint publications) of the Estonian–German cooperation and of the impact (i.e. the number of their citations) since around 1972. Finally, the most frequently cited Estonian–German joint papers in the field of Physics and Astronomy are listed.
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