Wójtowicz W., 2009. Guidelines for exhibiting rare and endangered species in the Botanical Garden of Adam Mickiewicz University in Poznań. [W:] Mirek Z., Nikel A. (eds.) Rare, relict and endangered plants and fungi in Poland. W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków: 529-533.

Wójtowicz W., 2009. Guidelines for exhibiting rare and endangered species in the Botanical Garden of Adam Mickiewicz University in Poznań. [W:] Mirek Z., Nikel A. (eds.) Rare, relict and endangered plants and fungi in Poland. W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków: 529-533.