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J. Kirchhoff; D. Mewes. (2000).
Einsatz der Ultraschalltechnik zum Messen der Materialeigenschaften dünner Elastomerschichten. , 72(9), 1082–1083.
doi:10.1002/1522-2640(200009)72:9<1082::aid-cite10822>3.0.co;2-w
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research
