@incollection{SchaafZech2005, author = {Wolfgang Schaaf and Wolfgang Zech}, title = {Effects of calcined magnesite, magnesium hydroxide and "Geosan" on soil properties in declining Norway spruce stands (NE Bavaria)}, url = {https://link.springer.com/content/pdf/10.1007\%2FBF02385237.pdf}, year = {2005}, }