@Article{bg-5-123-2008, AUTHOR = {Conen, F. and Zimmermann, M. and Leifeld, J. and Seth, B. and Alewell, C.}, TITLE = {Relative stability of soil carbon revealed by shifts in δ$^{15}$N and C:N ratio}, JOURNAL = {Biogeosciences}, VOLUME = {5}, YEAR = {2008}, NUMBER = {1}, PAGES = {123--128}, URL = {http://www.biogeosciences.net/5/123/2008/}, ISSN = {1726-4170} }