[Historical development of the x-ray ordinance].
Beck
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HR
D005860:Germany, West; D049673:History, 20th Century; D006801:Humans; D007878:Legislation as Topic / Q000266:history*; D011835:Radiation Protection / Q000266:history* / Q000331:legislation & jurisprudence / Q000592:standards; D011859:Radiography / Q000266:history* / Q000592:standards
Geschichtliche Entwicklung der Röntgenverordnung.