@book{id_12271, author = "Martius, Carl Friedrich Philipp von", title = "Beiträge zur Kenntniss der Gattung Erythroxylon", year = "1841", address = "München", publisher = "Akad. der. Wiss.", series = "Abhandlungen", volume = "3,7", url = "http://publikationen.badw.de/de/003082772", }