[Status of the knowledge on air hygiene at the end of the 18th century].
D000397:Air Pollution; D005858:Germany; D049668:History, 15th Century; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D011634:Public Health / Q000266:history
Zum lufthygienischen Kenntnisstand am Ende des 18. Jahrhunderts.