@book{id_8297, author = "Vogel, August", title = "Über Ammoniakbestimmung", year = "1866", address = "München", publisher = "Franz in Komm.", series = "Sitzungsbericht der Bayerischen Akademie der Wissenschaften", volume = "1866,1,20.", url = "http://publikationen.badw.de/de/003403591", }