Was bist DU?
https://n.neurology.org/content/94/1/39/tab-figures-data
https://www.youtube.com/watch?time_continue=1&v=bECtRPDCkWk&feature=emb_logo
https://thejns.org/view/journals/j-neurosurg/124/5/article-p1513.xml
https://academic.oup.com/brain/article-abstract/142/10/3129/5549975?redirectedFrom=fulltext
https://trid.trb.org/view/1601920
https://www.gleisbau-welt.de/lexikon/infrastruktur/oberbau/schwellen/betonschwellen/
https://www.researchgate.net/publication/328928474_Biblock-Bahnschwellen_aus_Kunststoff-Rezyklaten
https://www.zmescience.com/space/voyager-2-repair-nasa-07022020/
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