Duplicate title to Koranda, M., Kaiser, C., Fuchslueger, L., Kitzler, B., Sessitsch, A., Zechmeister-Boltenstern, S., & Richter, A. (2013). Fungal and bacterial utilization of organic substrates depends on substrate complexity and N availability. IIASA Interim Report. IIASA, Laxenburg, Austria: IR-13-042