Analysis of information sources in references of the Wikipedia article "Röntgenitoru" in Estonian language version.
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: eiran teksti "Autor: Paul Frame" (juhend){{netiviide}}
: eiran teksti "Autor: Christine Dehm, Holger Reinsberger" (juhend){{netiviide}}
: eiran teksti "Autor: Christine Dehm, Holger Reinsberger" (juhend)