@book{id_13901,
author = "Martius, Carl Friedrich Philipp von and Humboldt, Alexander von",
title = "Denkrede auf Alexander von Humboldt",
year = "1860",
address = "München",
publisher = "Verl. d. Königl. Akad.",
series = "Festrede",
volume = "3,29.",
url = "http://publikationen.badw.de/de/003408885",
}