@misc{indiciae9013b34846b9, title = {Determining biological tissue turnover using stable isotopes: the reaction progress variable.}, author = {Thure E Cerling and Linda K Ayliffe and M Denise Dearing and James R Ehleringer and Benjamin H Passey and David W Podlesak and Ann-Marie Torregrossa and Adam G West}, year = {2006}, doi = {10.1007/s00442-006-0571-4}, url = {https://pubmed.ncbi.nlm.nih.gov/17186277/}, note = {Source identifier: 17186277} }