Birkhofer, K., Schöning, I., Alt, F J., Marhan, S., Oelmann, Y., Berner, D., & Kandeler, E. (2012). General relationships between abiotic soil properties and soil biota across spatial scales and different land-use types. PLOS ONE, 7, . doi:10.1371/journal.pone.0043292

"General relationships between abiotic soil properties and soil biota across spatial scales and different land-use types / Klaus Birkhofer; Ingo Schöning; Fabian Alt ... Sven Marhan ... Yvonne Oelmann ... Doreen Berner ... Ellen Kandeler .." PLOS ONE .

Birkhofer, Klaus, et al. "General Relationships between Abiotic Soil Properties and Soil Biota Across Spatial Scales and Different Land-use Types." PLOS ONE 7 (2012).