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Analysis of information sources in references of the Wikipedia article "Alexander von Oettingen" in Estonian language version.
![[1]](https://www.ra.ee/dgs/browser.php?tid=40&iid=200220008089&img=eaa1261_003_0000005_00007_m.png&tbn=1&pgn=1&ctr=0&dgr=0&lst=2&hlx=&hly=&hlw=&hlh=&hash=06b2b8eb846f9fb99f00441fbaedf3a0){kind=link}