@book{ 186-G009573, title = {Die Bedeutung der Massenentsäuerung in der Bestandserhaltung}, series = {}, series = {78}, author = {Usemann-Keller, Ulla}, address = {Halle (Saale)}, publisher = {}, year = {1999}, url = {https://katalog.fid-bbi.de/Record/186-G009573} }