Hammelehle A., Mayer J., Lüscher A., Mäder P., Oberson A. The 15N natural abundance and enrichment techniques provide similar estimates of N transfer. Grassland Science in Europe, 24, 2019, 344. Download english (63 kB) Link: Grassland Science in Europe Vol. 24 Publication-ID (Web Code): 42460 Copy Link Sending by e-mail